1876.] Recent Literature. — 428 
that the laboratory method may be used to teach astronomy as success- 
fally as chemistry or physics; and accordingly considerable space is given 
to this subject, sufficient instructions being given to enable the civil 
engineer or explorer to be able to determine his latitude, longitude, and 
time, by the sextant or transit. The chapter on lantern projections will 
be found useful to lecturers on scientific topics, who need the lantern as 
a means of illustration, and to know how to produce the best results by 
simple and inexpensive means. 
Haypen’s Report on THE GEOLOGY or CoLorapo.! — This report 
is almost entirely devoted to geology, comprising the observations made 
by Professor Hayden and his assistants in 1874. The volume is mainly 
filled with the reports of Professor Hayden, Dr. A. C. Peale, and Mr. F. 
M. Endlich. Dr. Samuel Aughey contributes a valuable chapter on the 
surface geology of Nebraska, and Mr. L. Lesquereux a report on the 
rtiary flora of the North American Lignitic, considered as evidence 
of the age of the formation, with a review of the cretaceous flora of 
North America; an extended and very fully illustrated report on the 
ancient ruins in Southwestern Colorado, by Mr. W. H. Jackson, is fol- 
lowed by an interesting essay on the molluscs of the Rocky Mountains, 
by Mr. Ernest Ingersoll, illustrated by some anatomical drawings. Un- 
der the head of Topography and Geography, are reports by Messrs. 
Henry Gannett, S. B. Ladd, A. D. Wilson, and Franklin Rhoda. The 
Volume is certainly in interest and practical value not behind its prede- 
cessors, 
Barrp’s ANNUAL RECORD or Scrence ror 1875.? — This volume 
will be found indispensable to the general public, and of value to the 
Special student who may want a popular summary of discoveries in all 
departments of science. We think that the present Record is more val- 
uable than its predecessors, from the greater space (272 pages) devoted 
to the General Summary of Progress. Appended is a list of some of 
still mo 
Sving as it does a fair proportion of space to American discoveries, de- 
SNES the Exploration Jor the Year 1874. By F. V. Haypry. Washington. 1876. 
wW : 
Record of Science and Industry for 1875. Edited by S. F. Barr, with 
12mo, pp. ag eminent men of science. New York: Harper and Brothers. 1876. 
of Insectivorous Mammals. By Turopore Girt. Bulletin of the 
ecological and Geographical Survey of the Territories. No. 2 (pp. 
nd Series. Washington: Government Printing Office. May 14, 1875. 
