The Canadian naturalist and quarterly journal of science (1872) (14761835461)

Identifier: canadiannaturali06natu (find matches)
Title: The Canadian naturalist and quarterly journal of science
Year: 1872 (1870s)
Authors: Natural History Society of Montreal
Subjects: Natural history -- Periodicals
Publisher: Montreal, Dawson
Contributing Library: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
Digitizing Sponsor: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library



Text Appearing Before Image:
ke Spencer, are unwilling to admit theaction of any but known physical laws and agencies, may say, andtruly, that the supposition of an innate internal tendency onlyremoves the difficulties one step further back, and is at bestmerely re-stating the case in a general way; but little more canbe said of the theory of gravitation. ON A NEW FOSSIL CRUSTACEAN FI103I THEDEVONIAN EOCKS OF CANADA. Extract from a pai^er in the Geological Marjazine, Vol. 8, No. 3, ow some newPhyllopodous Crustaceans from the Palaeozoic MucJcs. By Henry Woodward, F.G.S., F.Z.S. Amonost a series of Crustacean remains, from the collection ofProf. Bell, of Canada, obtained in the Middle Devonian of G-asp^,and left with me for examination by the kindness of PrincipalDawson, F.R.S., of McGill College, Montreal, is a portion of a * American Journal of Science, July J 1860. t Am. Jovrn. of Science, March, 1860 ; Atlantic Monthly, July, Aug.,Oct., 1860. ; Reign of Law p. 237. § Froc. Zool. Sac. of London, Jan. 18, 1861.
Text Appearing After Image:
No. 1.) DAWSON—POST-PLIOCENE. 19 valve of Bithyrocaris? most beautifully sculptured, of which thefollowing is a description. The specimen is eleven lines inbreadth, and probably measured, when entire, nearly two inchcfein length. The dorsal border is rounded in a correspondingdegree with the ventral border; a small rostrum is observable atthe anterior end, from which two prominent ridges also take theirrise and pass over the side, one arching towards the dorsal, theother bending towards the ventral line, but uniting again on thecentre of the valve at one inch from the anterior end. The finestriae above and below these prominent ridges are parallel, butthose inclosed in the central elliptical space cross one another soas to form a finely reticulated pattern on its surface. The eyespot is distinct and prominent at the anterior end, near the inter-section of the two curved ridges. Other slight, scarcely visible,folds traverse the carapace parallel to the ventral and dorsalborder, indic