414 Notices of Recent and 
written for this edition ;. for example, Zoology, (by Dr. Godman, of — 
Philadelphia, author of the well known Am. Nat. History) Mineral- 
ogy and Chemistry. The departments of Political Economy and 
Geography have also been much enlarged. Numerous entire arti- 
cles of American and English Law have been introduced. In gen- 
eral Biography, large additions have been made. The articles on 
American Biography are entirely original, and have been furnished 
by Mr. Robert Walsh, Jr., whose learning and taste are a sufficient 
pledge of their value. The contributions under Mineralogy and 
Chemistry, though perhaps not a.complete system in themselves, in- 
clude nearly every particular which relates to the common con- 
cerns of life; and the articles are ably and faithfully written. In 
the nomenclature of minerals,, the following course appears to 
have been adopted. When the composition of a mineral is sim- 
ple, consisting of a combustible and metal, as Sulphuret of Anti- 
mony, or of an acid and an earth, as Sulphuric Acid and Barytes, 
as in Heavy Spar,—it is treated of under the head of the principal 
ingredient, as /Intimony im the first instance, and Barytes in the sec- 
ond. ‘Thus, also, Gibbsite, which is an Hydrate of Alumine, is de- 
scribed under that earth. In such cases, it is no doubt intended, in 
the progress of the work, that reference shall be made from the min- 
eralogical names of these substances to the chemical head under 
which they are mentioned. Where the composition is less simple, 
the mineral is noticed under one of its most popular names, as in the 
case of Axinite and Agalmatholite. 
While we congratulate the public on the prospect of such a work, 
we must be allowed to ask a favor of the publishers—that in the fu- 
ture numbers we may be saved from such a constant use of the pa- 
per knife. 
2. Elements of Physics or Natural Philosophy, general and Med- 
ical ; by Neil Arnott, M. D. of the Royal College of- Physicians. 
First American, from the third London edition; with additions, by 
Isaac Hays, A. M., M. D., &c. Svo, pp. 532. Philadelphia. 
3. Familiar Introduction to the Study of Botany, by Mrs. Lan- 
eoln, 12mo. pp. 335.—The intention of this work is expressed 
the title page. ‘Familiar Lectures on Botany, including Prac- 
tical and Elementary Botany, with Generic and Specific Descrip- 
tions of the most. common native and foreign plants, and a. Vocabu- 
- Jery of Botanical.terms, for the use of higher Schools and Acade- 
mies.” Mrs. Lincols, who. is vice-prineipal of the Troy Female 
