1885.] Recent Literature. 979 
REPORT OF PROGRESS OF THE GEOLOGICAL AND NATURAL His- 
TORY SURVEY OF CANADA FOR 1882-'83-’84.—This bulky volume 
is filled largely with matter relating to explorations in Central 
and Northeastern British America, particularly the region around 
Hudson’s bay. Among the more valuable reports are those by 
G. M. Dawson on the region in the vicinity of Bow and Belly 
rivers, Northeast Territory ; by Dr. Robert Bell on part of the 
basin of the Athabasca river, Northwest Terr., and the report of 
his observations on the Labrador coast, Hudson’s strait and bay ; 
while Mr. Ells and A. P. Low give the results of their explorations 
of the Gaspé peninsula. The geology of portions of New Bruns- 
wick is described by Professor L. W. Bailey, while the surface- 
geology of Western New Brunswick, especially the St. John val- 
ley, is reported on by Mr. R. Chalmers. Northern Cape Breton 
has been explored by Hugh Fletcher. Other reports are of eco- 
nomic interest, while the maps issued with the report form a 
separate atlas. 
lections hastily gathered from more or less widely separated 
localities by Government exploring parties and field geologists. 
“We now possess,” it is claimed in the letter of Mr. 
transmitting the present work to the director of the survey, “ the 
results of a careful survey of a district with a rich fauna, through 
30,000 feet of Palzeozoic strata, representing the Cambrian, Silu- 
tian, Devonian and Carboniferous rocks.” By means of these 
fossils Mr. Walcott has endeavored to illustrate the stratigraphic 
Succession and equivalency of the geological horizon in Central 
Nevada with those described elsewhere. 
-CURTIS SILVER-LEAD DEPOSITS OF Eureka, Nevapa.— This 
volume forms the seventh of the monographs of the U. S. Geo- 
logical Survey. It is illustrated by sixteen plates of sections, etc., 
of the Ruby Hill mines, and the work appears to have been care- 
fully prepared. The summary at the close of the volume, of results, 
will render the report accessible to miners and experts. 
i RECENT BOOKS AND PAMPHLETS. 
Morris, C.—The primary conditions of fossilization. Ext. Proc. Nat. Sci. Phil., 
1885. From the author. : 
guereux, L.—The Cretaceous and Tertiary floras. U. S. Geol. Surv. of the Ter- 
ritories, Vol. vi11, 1883. From the author. 
ith, E. A.—Report on the cotton production of the State of Alabama. Dept. of 
the Interior, 1884. From the author. : 
Nehring, — —Ueber die Schadelform und dass Gebiss des Canis jubatus Desm., in 
Sitz, den Gesell. natur Freunde zu Berlin, 1885, p. 109. From the author. 
VOL, xXIX—NO. X. 64 
