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Stephanus Franciscus Geoffroy Parisinus, natus anno. 1672 N. de Largilliere pinxit ; gravé par L. Surugue 1737

Stephanus Franciscus Geoffroy Parisinus, natus anno. 1672 N. de Largil...

Print shows Etienne François Geoffroy, half-length portrait, body turned to the left, face front, in a window, holding a copy of his "Materia Medico" upright with left hand. Caption continues: Facult. Medic. P... More

... Concentrated benzine, prepared by Hegeman & Co., chemists and druggists ... [New York, 18--].

... Concentrated benzine, prepared by Hegeman & Co., chemists and drug...

I. Title.; Gift, from the Caleb Cushing Papers, Oct. 22, 1962. Available also through the Library of Congress web site in two forms: as facsimile page images and as full text in SGML. Printed Ephemera Collectio... More

chemists from "New Historical Description of Cheltenham and its vicinity ... Embellished with ... engravings and maps, etc. [By Samuel Young Griffith.]"

chemists from "New Historical Description of Cheltenham and its vicini...

This image has been taken from scan 000511 from "New Historical Description of Cheltenham and its vicinity ... Embellished with ... engravings and maps, etc. [By Samuel Young Griffith.]". The title and subject ... More

Caricature, L'Amité d'un grand chimiste.., public domain cartoon image

Caricature, L'Amité d'un grand chimiste.., public domain cartoon image

L'amité d'un grand chimiste n'est pas un bienfait des dieux. Je suis tellement sur de mon fait, que maintenant, si vous le désirez, je vais empoisonner mon ami intime, Mr. Coquardeau, et je retrouverai de l'ars... More

Caricature, L'Amité d'un grand chimiste.., public domain cartoon image

Caricature, L'Amité d'un grand chimiste.., public domain cartoon image

L'amité d'un grand chimiste n'est pas un bienfait des dieux.Je suis tellement sur de mon fait, que maintenant, si vous le désirez, je vais empoisonner mon ami intime, Mr. Coquardeau, et je retrouverai de l'arse... More

L'Amité d'un grand chimiste.. - Public domain portrait print

L'Amité d'un grand chimiste.. - Public domain portrait print

L'amité d'un grand chimiste n'est pas un bienfait des dieux. Je suis tellement sur de mon fait, que maintenant, si vous le désirez, je vais empoisonner mon ami intime, Mr. Coquardeau, et je retrouverai de l'ars... More

Caricature, Jean-Baptiste Dumas, public domain cartoon image

Caricature, Jean-Baptiste Dumas, public domain cartoon image

Public domain scan of 1850s woodcut print, free to use, no copyright restrictions image - Picryl description

La déroute! - Engraving, Public domain image

La déroute! - Engraving, Public domain image

The rout Courtesy of Boston Public Library Public domain scan of 1850s woodcut print, free to use, no copyright restrictions image - Picryl description

Auckland from near park, New Zealand / Burton Brothers Studio

Auckland from near park, New Zealand / Burton Brothers Studio

Public domain vintage photo from New Zealand archive, free to use, no copyright restrictions image - Picryl description

William Fife, Chemist & Druggist, Willis Street, Wellington

William Fife, Chemist & Druggist, Willis Street, Wellington

Public domain vintage photo from New Zealand archive, 19th century, free to use, no copyright restrictions image - Picryl description.

Marie Sklodowska Curie (1867-1934)

Marie Sklodowska Curie (1867-1934)

Description: Polish physicist Marie Sklodowska Curie (1867-1934) was the first woman to be awarded the Nobel Prize in physics, sharing it with her husband Pierre in 1903 for their work on radioactivity. After ... More

Robert Wilkinson, Chemist of Dunedin

Robert Wilkinson, Chemist of Dunedin

Public domain vintage photo from New Zealand archive, free to use, no copyright restrictions image - Picryl description

Perretts Corner, Wellington - Muir & Moodie, New Zealand

Perretts Corner, Wellington - Muir & Moodie, New Zealand

Public domain vintage photo from New Zealand archive, free to use, no copyright restrictions image - Picryl description

[Dr. Alexander Gettler, toxicologist and forensic chemist with the Office of Chief Medical Examiner of the City of New York, in a laboratory]

[Dr. Alexander Gettler, toxicologist and forensic chemist with the Off...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

[Dr. Alexander Gettler, toxicologist and forensic chemist, and Dr. Charles Norris, New York City's first chief medical examiner, in a laboratory]

[Dr. Alexander Gettler, toxicologist and forensic chemist, and Dr. Cha...

Stamped on verso: Received Oct 21 1932; Last time used Nov 27 1945 edition 1. Forms part of: New York World-Telegram and the Sun Newspaper Photograph Collection (Library of Congress).

Louise Stanley (1883-1954) - Womens history month

Louise Stanley (1883-1954) - Womens history month

Subject: Stanley, Louise 1883-1954. University of Missouri. United States Bureau of Home Economics. Vanderbilt University Peabody College. Columbia University. Yale University..Type: Black-and-white photographs... More

Treasury, Internal Reverend Chemist G.F. Beyer

Treasury, Internal Reverend Chemist G.F. Beyer

Public domain photograph of laboratory, science, research, free to use, no copyright restrictions image - Picryl description

Treasury, Internal Reverend Chemist G.F. Beyer

Treasury, Internal Reverend Chemist G.F. Beyer

Title from unverified data provided by the National Photo Company on the negatives or negative sleeves. Date from negatives in same range. Caption from caption list: Chemist G. F. Beyer of the Internal Revenue... More

Treasury, Internal Reverend Chemist G.F. Beyer

Treasury, Internal Reverend Chemist G.F. Beyer

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Treasury, Internal Reverend Chemist G.F. Beyer

Treasury, Internal Reverend Chemist G.F. Beyer

Title from unverified data provided by the National Photo Company on the negatives or negative sleeves. Date from caption list. Caption from caption list: Activities on the Internal Revenue Bureau to enforce pr... More

Treasury, Internal Reverend Chemist G.F. Beyer

Treasury, Internal Reverend Chemist G.F. Beyer

Title from unverified data provided by the National Photo Company on the negatives or negative sleeves. Date from caption list. Caption from caption list: Chemist G. G. Beyer, of the Internal Revenue Bureau, ma... More

Treasury, Internal Reverend Chemist G.F. Beyer

Treasury, Internal Reverend Chemist G.F. Beyer

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

[North Island town] - Roland Searle photograph

[North Island town] - Roland Searle photograph

Public domain vintage photo from New Zealand archive, free to use, no copyright restrictions image - Picryl description

Studying why fruits taste that way. E.K. Nelson of the Department of Agriculture is shown making tests with an apparatus which the Department imported from Germany for the purpose of studying the essential oils or "flavor-giving" content of fruits and vegetables. At present chemists are acquainted with the essential oils of only a few fruits, such as some of the citrus group. The apparatus is a vacuum distill which permits the distillation of liquids at temperatures much lower than usual by reducing the pressure, 1/10/31

Studying why fruits taste that way. E.K. Nelson of the Department of A...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

[Parke, Davis and Company, Manufacture Chemists, Detroit, Mich. May 1943. Inspection of blood plasma containers after the final capping]

[Parke, Davis and Company, Manufacture Chemists, Detroit, Mich. May 19...

Public domain photograph of America during the Great Depression, 1930s, free to use, no copyright restrictions image - Picryl description

[Continental Carbon Company], Southern Methodist University collection

[Continental Carbon Company], Southern Methodist University collection

Title: [Continental Carbon Company]..Creator: Richie, Robert Yarnall (1908-1984)..Date: July 25, 1937..Part Of: Robert Yarnall Richie Photograph Collection..Place: Sunray, Texas..Description: This image shows a... More

Rubber reclamation. Science guides rubber reclamation. Skilled chemists at a Midwest xylos process plant test every batch of rubber recovered from scrap to ensure removal of all traces of fabric, metal and other foreign matter. Firestone

Rubber reclamation. Science guides rubber reclamation. Skilled chemist...

Picryl description: Public domain image of a worker, labor, factory, plant, manufacture, industrial facility, 1930s, mid-20th-century industrial photo, free to use, no copyright restrictions.

Production. Industrial alcohol. The acidity of finished industrial alcohol is determined by titration in the control laboratory of a converted whiskey distillery. All the laboratory workers are graduate chemists, chemical engineers, biologists or other chemical specialists

Production. Industrial alcohol. The acidity of finished industrial alc...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Six stages of fat salvage. Separated from the soap, crude glycerine is purified and repeatedly tested by chemists. The housewife's tablespoonful of fat is now almost ready for the fighting fronts. When 98.6 purity has been achieved, glycerine is sent to ammunition plants, munitions plants, plant factories

Six stages of fat salvage. Separated from the soap, crude glycerine is...

Public domain photograph of 1930s industry, war production in the United States free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Vitamin B- and C-deficient chicken and normal chicken

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. V...

Public domain photograph of indoor, interior activity, America in the 1930s, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Capping bottles containing blood plasma

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. C...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Cutting tips off empty ampoules

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. C...

Picryl description: Public domain image of a worker, labor, factory, plant, manufacture, industrial facility, 1930s, mid-20th-century industrial photo, free to use, no copyright restrictions.

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Filling gelatin capsules ready for transfer to the finishing department

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. F...

Picryl description: Public domain image of food, dinner, grocery store, eating, 1930s, mid-20th-century United States, free to use, no copyright restrictions.

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Sterilizing empty glass containers in an autoclave

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. S...

Public domain photograph of 1930s-1940s industrial development, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Alkaloid assay section in the analytical department

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. A...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Inspection of filled capsules

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. I...

Public domain photograph of 1930s industry, war production in the United States free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Filling ampoules with an arsenical drug in powder form under protected conditions

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. F...

Public domain photograph of indoor, interior activity, America in the 1930s, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Final inspection of filled medicinal Kapseals

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. F...

Public domain photograph - working class people, the 1930s United States, work, labor, worker, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Filling ampoules with medicinal solution

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. F...

Public domain photograph of indoor, interior activity, America in the 1930s, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Counting empty gelatin capsules

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. C...

Public domain photograph of indoor, interior activity, America in the 1930s, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Mixing medicinal powders for pharmaceutical products

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. M...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Cartoning and packaging ampoules automatically

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. C...

Public domain photograph of working people, Great Depression, 1930s, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Freezing blood plasma

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. F...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Capping bottles containing blood plasma

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. C...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Preparing to dehydrate flasks of frozen blood plasma

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. P...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. A small section of a storage room where bulk stocks of fluid extracts are stored in wicker covered demijohns

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. A...

Picryl description: Public domain image of an industrial building, factory, workshop, workers, 20th century, free to use, no copyright restrictions.

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Recording apparatus used in the manufacture of blood plasma

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. R...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. A step in the process of reducing fluid extracts to solid extracts

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. A...

Public domain photograph of indoor, interior activity, America in the 1930s, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Packaging tablets in the finishing department

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. P...

Public domain photograph of 1930s industry, war production in the United States free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Packaging empty gelatin capsules

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. P...

Public domain photograph of 1930s America, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Cutting tips off empty capsules

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. C...

Public domain photograph - working class people, the 1930s United States, work, labor, worker, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Another view of the shelves in the freezing room for blood plasma

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. A...

Public domain photograph of 1930s industry, war production in the United States free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Production of gelatin capsules in a special size

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. P...

Public domain photograph of indoor, interior activity, America in the 1930s, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Chemical determination of vitamin B1

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. C...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. The manufacture of gelatin caps

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. T...

Public domain photograph of 1930s America, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Sealing special-sized ampoules by hand

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. S...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Filling wax capsules with silver nitrate solution

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. F...

Public domain photograph - working class people, the 1930s United States, work, labor, worker, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. The different units which comprise a complete blood plasma package

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. T...

Public domain photograph of indoor, interior activity, America in the 1930s, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Labeling cartons containing the finished packages of blood plasma

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. L...

Public domain photograph of 1930s industry, war production in the United States free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Checking the leg bones of rachitic rats in testing vitamin deficiencies

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. C...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. A ball tumbler mill used in the thorough mixing of medicinal powders

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. A...

Public domain photograph of indoor, interior activity, America in the 1930s, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Preparation of blood plasma: freezing section

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. P...

Picryl description: Public domain image of a worker, labor, factory, plant, manufacture, industrial facility, 1930s, mid-20th-century industrial photo, free to use, no copyright restrictions.

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Inspection of empty gelatin capsules over a light

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. I...

Public domain photograph of indoor, interior activity, America in the 1930s, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Automatically filling ampoules with medicinal solution

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. A...

Public domain photograph of indoor, interior activity, America in the 1930s, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Rat on the left is deficient in riboflavin. Rat on the right is normal

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. R...

Public domain photograph of indoor, interior activity, America in the 1930s, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Inspection of filled capsules

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. I...

Public domain photograph of 1930s America, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Freezing flasks of blood plasma

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. F...

Public domain photograph of American working class people in the 1930s, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Packaging pills in the finishing department

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. P...

Public domain photograph - working class people, the 1930s United States, work, labor, worker, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Capping flasks containing blood plasma

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. C...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Filling ampoules with an arsenical drug under protected conditions

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. F...

Public domain photograph - working class people, the 1930s United States, work, labor, worker, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Hermetically sealing filled gelatin capsules

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. H...

Public domain photograph of 1930s industry, war production in the United States free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Checking the daily weight of rats used in vitamin testing

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. C...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Freeing blood plasma

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. F...

Public domain photograph of American working class people in the 1930s, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Dissecting animal glands

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. D...

Picryl description: Public domain image of food, dinner, grocery store, eating, 1930s, mid-20th-century United States, free to use, no copyright restrictions.

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Incubating room in the biological department

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. I...

Public domain photograph of American working class people in the 1930s, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Treating vitamin-deficient white rats

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. T...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Inspection of blood plasma containers before final capping

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. I...

Public domain photograph of 1930s industry, war production in the United States free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. A machine through which filled glass ampoules are passed for automatic sealing

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. A...

Public domain photograph of industry and equipment, 1930s, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Mechanical mising of the arsenical drug before filling into the ampoules

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. M...

Public domain photograph of 1930s industry, war production in the United States free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Sealing cartons containing packaged blood plasma

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. S...

Public domain photograph of indoor, interior activity, America in the 1930s, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Dehydration equipment used in the manufacture of blood plasma

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. D...

Picryl description: Public domain image of a worker, labor, factory, plant, manufacture, industrial facility, 1930s, mid-20th-century industrial photo, free to use, no copyright restrictions.

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. One of the steps in reducing fluid extracts to solid extracts

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. O...

Picryl description: Public domain image of a factory worker, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions. show less

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Riboflavin-deficient white rat and a normal white rat

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. R...

Public domain photograph of indoor, interior activity, America in the 1930s, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Alkaloid assay section in analytical department

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. A...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Section of shelves in the blood plasma freezing room

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. S...

Public domain photograph of 1930s America, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. The weights of white rats, used in the biological testing of vitamins, are checked daily

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. T...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Filled ampoules on a conveyor to the sealing machine

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. F...

Public domain photograph of 1930s America, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Girl with a tray of empty ampoules

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. G...

Public domain photograph of the United States in the 1930s, portraits, people, events, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Attaching the sling for suspending flasks of blood plasma

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. A...

Public domain photograph of 1930s industry, war production in the United States free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Inspection of filled capsules

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. I...

Picryl description: Public domain image of a worker, labor, factory, plant, manufacture, industrial facility, 1930s, mid-20th-century industrial photo, free to use, no copyright restrictions.

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Chickens used in pigmentation tests in vitamin deficiency

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. C...

Public domain photograph of 1930s industry, war production in the United States free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Finished packages of blood plasma ready to be shipped

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. F...

Public domain photograph of indoor, interior activity, America in the 1930s, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. A rat deficient in vitamin B

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. A...

Public domain photograph of indoor, interior activity, America in the 1930s, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Alkaloid assay section in the analytical department

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. A...

Public domain photograph of indoor, interior activity, America in the 1930s, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Filled capsules ready for transfer to finishing department

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. F...

Public domain photograph of United States agriculture in the 1930s, country, farmer, farm, great depression, migration, dust bowl refugees, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Dissecting animals' glands

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. D...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Checking vitamin deficiencies in animals

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. C...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Employees leaving the laboratory

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. E...

Public domain photograph of laboratory, science, research, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. A step in the pooling of blood plasma

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. A...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Inspecting empty ampoules

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. I...

Picryl description: Public domain image of a factory, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions.

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