34 
SCIENTIFIC HOOKS PUBLISHED HY 
Peirce’s Analytic Mechanics. 
4to. Cloth. $10.00. 
SYSTEM OF ANALYTIC MECSANICS. Physical and Celestial 
Meohanics. By Benjamin Peirck, Perkins Professor of Astronomy 1 
and Mathematics in Harvard University, and Consulting As- 
tronomer of tlie American Epliemeris and Nantical Alnianac. 
Developed in four Systems of Analytic Meohanics, Celestial 
Meohanics, Potential Physics, and Analytic Morphology. 
“ I have re-examined the memoirs of the great geometers, and have striven 
to consolidate their latest researehes and their raost exalted forma of thought 
into a consistent and uniform treatise. If I have hereby sueoeeded in open- 
ing to the students of my eountry a readier aeoess to these choice jeweis of 
intollect; if their brilliancy is not impaired in this attempt to reset them ; if, 
in their own constellation, they illustrate each other, and ooaeentrate 
a stronger light upon the names of their diseoverers , and, still more, if uny 
sein which I may have presumed to add is not wholly lustreless in the Collec 
tion, I shall feel that my work has not been in vain.”—Kxtract fvovn, ihß Pte- 
f/iee. 
Burt’s Key to Solar Compass. 
Second Edition. 
Pocket Book Form. Tuck. $2.50. 
KEY TO THE SOLAR COMPASS, and Surveyor’s Companion ; 
comprising all the Bules necessary for use in the Held; also, 
Description of the Linear Surveys and Public Land System of 
the United States, Notes on the Barometer, Suggestions for an 
outlit for a Survey of four months, etc., etc., etc. By W. A. 
Burt, U. S. Deputy Surveyor. Second edition. 
Chauvenet’s Lunar Distances. 
8vo. Cloth. $2.00. 
NEW METHOD OF CORRECTING LUNAR DISTANCES, 
and Improved Method of Finding the Error and Rate of a Chro 
nometer, by equal altitudes. By Wm. Chauvenet, LL.D., Chan 
cellor of Washington University of St. Louis.