36 The West American Scientist. 
BIBLIOGRAPHY. 
A. Biytt. On variations of climate in the course of time. 
Christiania Videnskabs-Selskabs Forhandlinger, 1886, No. 8. 
The probable cause of the displacement of beach-lines; an attempt 
to compute geological epochs. 1. c., 1889, No. 1. From the 
author. h 
. LiIFE-LoRE. 4 Essex street, Strand, London, W. C., Vol. 1, 
No. 8, February, 1889. An excellent monthly magazine, full 
of things interesting to the naturalist, especially adapted in style, 
like our American Sw7ss Cvoss, to interest the young student. 
R. W. SHUFELDT. The Navajo Tanner, Proc. U. S. Nat. 
Mus., XI.; 59-66 (with six plates). An interesting account of 
the process of tanning and preparing of buckskin practiced 
among the Navajos. as performed directly under the author’s 
personal observation by an Indian at Fort Wingate, New 
Mexico. ) 
Jas. G. STEELE. Notes on California medicinal plants. 
Pharm Rec... 1xey7—3) 
THE JOURNAL OF Myco.LocGy. It is announced that this 
magazine will be issued quarterly during 1889, edited under the 
direction of the Commissioner of Agriculture, and distributed 
free to all the present subscribers. 
C. E. Bessey. A few notable weeds of the Nebraska plains. 
American Nat’l., X XII, 1114-1117. 
BULLETIN om the laboratories of natural history of the State 
University of Iowa. Vol. 1, No. 1, lowa City, November 1888. A 
valuable ‘contribution to the natural history of Iowa. The 
principal papers are by S. Calvin, on geology; T. H. McBride, 
on botany; B. Shimek, on mollusca; and H. F. Wickman, on 
coleoptera. | 
THE CENTURY MAGAZINE, April. This is issued as the cen- 
tennial number of Washington’s inauguration. ‘Some aspects 
of the Samoan question,’ by Geo. H. Bates, is of especial interest 
at this time. 
THE NavutiLus. A monthly journal of conchology is an- 
nounced to take the place of the Conchologist’s Exchange, with 
H. A. Pilsbury as editor. 
W.H. Epwarps. The Preparatory Stages of Colias meadit 
Canad. Entom., March, 1889. In this paper the egg, larva in 
all its stages, and pupa are described with the author’s custom- 
ary precision. The larva is darker than any other Colias larva 
known to Mr. Edwards. The locality given (p. 42) as ‘ Marshall 
Peak’ should be Marshall Pass. ZL. DD Ae 
JAMEs Cassipy. Notes on Insects and inacermitee (Bull. 
6, Agricultural Exper. Stn., Fort Collins, Colorado, January, 
1889. ) In this twenty-four page bulletin, Prof. Cassidy gives 
