302 ty, Bibliography. 
same time distributing its results among those who will render them 
available to the country. A library of indefinite extent is in the course 
of collection, and the labors of the able librarian, Mr. Jewett, are de- 
voted also to the general progress of libraries throughout the country. 
these and other modes, the will of Smithson is faithfully ida 
out by the Institution under the direction of Prof. Henry, its learned 
Secretary. The Report gives details of its various operations of a 
_ most gratifying kind. 
3. On the connection of Geology with Terrestrial Magnetism, show- 
ing the general polarity of matter, the meridional structure of the 
crystalline rocks, their transitions, movements and dislocations, includ- 
ing the sedimentary rocks, the laws regulating the distribution of me- 
talliferous formations and other terrestrial phenomena; by Evan 
Horxins. 2nd edition, 200 pp., 8vo, with 30 plates and numerous 
his speculations and conclusions, is found in sianectis 
. Photography : a Treatise on the Chemical ation produced: by 
Solar Radiation and the production of Pictures from Nature yf v4 
Daguerreotype, Calotype and other wees art processes ; by Ros 
H of Mech. Science in the of Practical Geclogy, 
author of Researches on Light, the Poetry of § Science, etc.; with ad- 
ditions by the American editor. 266 pp., 12mo. New York, 1852. 
. Humphrey.—Prof. Hunt, the author of this work on photography 
is well known for his able investigations in this department of the arts, 
and his profound knowledge of many branches of physical science. 
His work is the result of experience as well as study, and shoul be 
in the hands of all engaged in photographic operations, both the pro- 
artist and the amateur. The author Ming of the history of the 
science, its theory, and its various processes on paper, silvered plates 
and other materials, giving all the minuteness of detail Po ae Fe by @ 
illustrated by wisiliciis representing instruments, be tee ‘containing 
Portraits of Daguerre and Neipce, and two lithographs representing 
eas and cee a cootes, We Al 
ay of the Creator, or the Natural Evidences of 
Final Cause ; 5 Ohkene Tayitor. 282 pp. 12mo. New York, gpI. 
C. Soribaibe, SoPks Object of this volume is to sustain the idea of a pet 
sonal Creator, against certain pseudo-scientific arguments, and at mm 
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more than this, that science has stood so firmly against it, and especial! 
geologists, that the anthor of the Vestiges, in his supplement, actually 
endeavors to prove that men of science, are men of one idea and there- 
fore not competent to judge, 
