Interior of Fort Nicholas / W. Simpson del. ; E. Walker lith. ; Day & Son, Lithrs. to the Queen.

The invention of lithography at the turn of the 19th century opened a new world for bird illustrators. It brought many advantages to the artist — ease of use, a softness of line, and a new freedom to effect bold designs with a wide range of light and dark tones. Most of the fine ornithology books of the 19th century were prepared in folio format with hand-colored lithographic plates. The lithographic process is one of flat surface printing from a design drawn on stone. It is based on the principle of the resistance of grease to water. There are no raised or cut portions, as there are in engraving and etching. The image is drawn with greasy ink or chalk on a smooth stone, and the rest of the stone is treated with gum arabic and nitric acid. The gum retains the lines of the greasy design, which repels the water used in printing. Special paper and ink, as well as a special press, are needed to produce the prints. First used for bird illustration in 1820, lithography was widely adopted by the best artists of the century. The technique was popular because the artist could draw his own illustration directly on the lithographic stone. Prints could be made from the drawing with no intermediary such as an engraver. Accurately reproduced and then colored by hand, the resulting illustrations gave the impression of original watercolor paintings.

Crimean War October 1853 - March 1856. Russian Empire lost to an alliance of France, Britain, the Ottoman Empire, and Sardinia. Nicholas I of Russia issued an ultimatum that the Orthodox subjects of the Ottoman Empire be placed under his protection. Britain attempted to mediate and arranged a compromise that Nicholas agreed to. When the Ottomans demanded changes, Nicholas refused and prepared for war. Having obtained promises of support from France and Britain, the Ottomans declared war on Russia in October 1853. The war started in the Balkans, when Russian troops occupied the Danubian Principalities, until then under Ottoman suzerainty and now part of modern Romania, and began to cross the Danube. Fearing an Ottoman collapse, France and Britain rushed into the war without much success. Frustrated by the wasted effort, and with demands for action from their citizens, the allied force decided to attack the center of Russian strength in the Black Sea at Sevastopol on the Crimean peninsula. After extended preparations, the forces landed on the peninsula in September 1854 and fought their way to a point south of Sevastopol. The Russians counterattacked on 25 October in what became the Battle of Balaclava and were repulsed, but at the cost of seriously depleting the British Army forces. A second counterattack, ordered personally by Nicholas, was defeated by Omar Pasha. Sevastopol fell after eleven months, and neutral countries began to join the Allied cause. Isolated and facing a bleak prospect of invasion from the west if the war continued, Russia sued for peace in March 1856. This was welcomed by France and Britain, as their subjects were beginning to turn against their governments as the war dragged on. The war was ended by the Treaty of Paris, signed on 30 March 1856. Russia was forbidden from hosting warships in the Black Sea. The Crimean War was one of the first conflicts to use modern technologies such as explosive naval shells, railways, and telegraphs.