Miscellanies. 889 
ges each, with numerous engravings, and is afforded at a price so low 
as to render it worthy of being held up as an a to the trade. 
2. Prof. Eaton’s Geological Text-Book.—We ne that a 
new edition of this work will be published in March, and that the 
enlarged system of American Geology which was announced, (Vol. 
xiv, p. 400, of this Journal,) is for the present relinquished. 
3. American edition of Prof. Lindley’s Introduction to the Natu- 
ral System of Botany, one volume 8vo. G.C. & H. Carvill: N. Y.— 
This is not merely a reprint of this invaluable work, but its value is 
greatly enhanced by the additions of Dr. Torrey, which consist of an 
outline of the first principles of Botany, (that had been published by 
Prof. L. in a separate form,) and an appendix of his own, containing 
a catalogue of the North American genera, arranged according to 
the order in the text, with the number of species belonging tq each 
genus, as far as they are at present determined, besides several ta- 
bles exhibiting the relative proportions of the different — and 
an index. 
4. Elementary Work on Conchology.—We understand that a Pro- 
fessor in one of our colleges, well known for his attainments in this 
branch, will publish, in the course of a few months, a work intended: 
expressly for learners; in which the improved, modern arrangement 
in this science will be presented, accompanied with descriptions of 
American Shells, and whatever is requisite in the way of a glossary, 
and of engravings, for the illustration of the subject generally. 
5. Conrad’s Marine Conchology.—The 2d No. of this beautiful 
work was published in September, and contains figures and descrip- 
tions of two species of Lima, three species of Solecurtus and two of 
Solen. 
6. New Work on Mineralogy.—Mr. Howe, of this city, has in 
press, Part the first of a new Treatise on Mineralogy, by Mr. C. U. 
Shepard. It will be confined to the developement of the first prin- 
ciples of the science, as a branch of Natural History ; to the eluci- 
dation of the geometrical relations of crystals, and of the natural 
properties in general ; and to the proposal of an artificial method, or 
a series of analytical tables, for the determination of minerals, found- 
