486 Recent Literature. [ May, 
the middle ages and the renaissance; evolution of the idea of spe- 
cies; the philosophers of the eighteenth century: Buffon, La- 
marck, Geoffrey St. Hilaire, Cuvier. Discussion between Cuvier 
and Geoffrey Saint Hilaire, Goethe, Dugés, the natur-philosophers, 
the theory of organic types and its consequences; Agassiz; the 
lower animals; the cellular theory and the constitution of the in- 
dividual embryology, the species and its modifications. 
CanapIAN GEOLOGICAL SuRvEy.—The Canadian Geological 
Survey has published a descriptive sketch of the physical geogra- 
phy and geology of Canada, which has been prepared to accom- 
pany a new geological map of the Dominion on a scale of forty 
miles to one inch. The description of the eastern section is by 
the Director of the Survey, Dr. Selwyn, and of the western part 
by Dr. G. M. Dawson. The maps are a valuable addition to 
geological science, as embodying the latest explorations of the 
survey, particularly on the Pacific coast, as also in Newfoundland. 
TWELFTH ANNUAL REPORT OF THE GEOLOGICAL AND NATURAL 
History Survey oF Minnesota.—The report is mainly devoted 
to Mr. Herrick’s final report on the Crustacea of Minnesota, 
which has been already noticed in this magazine, and also to 
Mr. Warren Upham’s catalogue of the flora of Minnesota. 
RECENT Books AND PAMPHLETS, 
Re N, 
also a castigation and an appeal. Baltimore, 1885. From the author. 
Jackson, A. W.—On the morphology of Colemanite. Bull. Cal. Acad. of Sciences, 
Jan., 1885. From the author. 
Derby, O. A.—Physical geography and geology of Brazil. Rio Janeiro, 1884. 
——On the flexibility of Itacolumite. Ext. Amer. Jour. of Science, 1884. Both 
from the author. 
Rice, W. N.—The geology of Bermuda. From Bull, No. 25 U. S. National Mu- 
seum, Washington, 1884. From the author. i 
Sharp, B.—Homologies of the vertebrate crystalline lens, Ext. Proc. Nat. Sci., 
Phil., 1884, From the author. 
Frazer, P_—Address read before the Royal Society of Canada, May, 1884. From 
the author, `. TT 
James, J. F.—The Fucoids of the Cincinnati group. Ext. Jour. Cin. Soc. Nat. Hist., 
1884. From the author. 
Kollmann, J—HĦHohes Alter der Menschenrassen. Zeitschrift für Ethnologie, Ber- 
lin, 1884. From the author. 
Ryder, J. A., and Puysegur, M.—Papers on the development and greening of the 
oyster, ' Washington, 1884. From the authors. 
Geinitz, H. B.—Ueber die Grenzen der Zechsteinformation und der Dyas uberhaupt. 
Crosby, W. O.—Orıgin and relations of continents and ocean basins. Ext. Proc. 
; Bost. Soc. Nat. Hist. . 
_ = —On the relations of conglomerate and slate in the Boston basin. Ext, idem. 
——On the chasm called “ Purgatory” in Sutton, Mass, Ext. idem. All from the 
author, 
-~ Oliver, C. A.—A correlation theory of color perception. Ext. Amer. Jour. Med. 
Be Sa., 1885. From the author, 
