150 Bibliography. 
Although published under the auspices of a State, it is properly a work 
of the country ; and while its merits will bring honor to the science of 
the land, the cine bearing of its facts, the wide extension throughout 
North America of the strata investigated and of the fossils here brought 
the country. It must therefore be in the hands of all who would go 
“eg ne PMI in the investigation of American geology. There 
y points a a to science, which we intend to bring out in 
a er ‘notice of the ar 
The plates are in ss main — etoorne oan executed. They oxhibid 
an historical fact connected wit work—that lithography which was 
first adopted for the figures was dina onde rejected, yrds se unsatis- 
factory manner in which the plates were finished. A large part. of 
the plates were reéngraved on steel, in which style the done engraving 
was done. 
Much dissatisfaction has been felt by those interested in science, that 
the volumes of Reports of the New York State Survey were no where | 
to be obtained by purchase. e are gratified to learn that two hun- 
dred copies of this volume are in the hands of Wiley & ehprenie 
New York; and we would recommend to those who desire a copy to 
make early rater an 
4. Manual of Magnetism, esac Galvanism, Magnetism, Elec- 
seilligections Electro-Dynamics, Magneto- Electricity and 1 ‘Thermos 
Electricity ; with 180 steailial Moebeetiones ; by Dantet Davis, jek 
edition. Boston: 1847.—In vol. Sli, of our first series, 1842, 
p- 381, we gave a decidedly favorable and commendatory notice of the 
work of which we are now happy to announce a second and impr 
edition. ‘+ Alterations and additions have been made to adapt it better 
to the purposes of a text-book for Colleges and High Schools, and also 
as a companion to the apparatus, as many new instruments have been 
contrived to illustrate these departments of neat; and are ~ for the 
first time described.” Mr. Davis is well known to us as an 
both in the theory and viable of the ationsee which he illustrates 
tiie resent volume besides being a sarsamesy to the apart ’ 
also a. > ie and may therefore be used a xt-book. We have 
cited from the preface the author’s own views of, his work, and can en- 
a them with our full confidence. _ For the purposes for ino it has 
Deen prepared, we know of no work of the same extent w 
Se iecaal instrument maker, 428 Washington street fg 
