300 Miscellaneous Intelligence. 
Examination, by direction of the Hon. Jefferson Davis, Sec- 
15. An 
retary of War, on the Reporis of Explorations for Railroad Routes 
of 
from the Mississippi River to the Pacific, made under the Or 
the War Department in 1853-754, and of the Explorations pare it 
vious to that time, which have a — upon the subject ; = Capt. A. 
A. Humpureys and Lieut. G. K. Warren, Corps ‘Topo sh- 
ington, 1855. H. Doc., 129. ere ealoatie: review of the om collected 
in different Explorations of the Rocky mountains, with reference — 
Pacific Railroad reute.—Also a Report - the Secretary or WaR 
ae several Pacific Railroad Exploratio 
n In se ee to Practical awe, with a collection of As- 
f. .D., &e. 
on. -T 
could eleomeeee s—besides being bulky and very expensive, is out 
of dat 
This want it has been the aim of Prof. Loomis to supply. Amateur 
observers, surveyors, scientific travelers, and students of practical 
astronomy generally, a welcome the present work as one especially 
ted s. 
The chapters on pamdiients are clear, comprehensive and practical. 
Demonstrations accompany the mathematical formuls, so that the stu- 
dent has, at every step, the means of satisfying himself of the accu- 
racy of the methods adopted. This characteristic * the work will 
give it especial value as a college text-book. The accurate pie to 
tion of eclipses and occultations, and the detartninntin of longitudes 
fro 
given. Great care seems to have been taken to render not only t 
catalogue, but the other tables, and the work generally, as reliable as 
possible. The author’s known habits of discrimination and scrupulous 
accuracy are a sufficient guaranty that in this particular the book will 
be found am free from fault. 
he wo ing intended only as an introduction, and containing less 
than 500 pages, no one will expect it to treat of the higher and more 
intricate b he es of practical a such as the computation of 
e classes for whom it was pre; red 
it can safely be recommended, as bersies for their purposes, no superior 
ther. * 
in the English language, if, indeed, i in any ot 
, 
* 
