The following notices of new works were omitted in their proper 
place. 
Essays on some of the most important articles of the Materia Med- 
ica, comprising a full account of all the new proximate principles, 
and the popular medicines lately introcuced in practice, detailing the 
formulas for their preparation, their habitudes and peculiarities, do- 
ses and modes of administration; with remarks on the most eligible 
form of their exhibition: to which is added, a catalogue of medicines, 
surgical instruments, &c. &c., adapted for a physician at the outset of 
his practice, with the doses and effects attached to each medicine, 
&c. &c. By G. W. Carpenter. Second edition, revised and en- 
larged ; 8vo. pp. 320. Philadelphia, G. W. Carpenter. 
Mr. Carpenter’s Essays are well known, and the present edition 
is much improved. 
Elements of Geology, for the use of schools. By Wm. W. Ma- 
ther; 18mo. pp. 139. Norwich, Wm. Lester, Jr. 
This is a judicious, correct, and perspicuous work, containing in 
a small compass, a selection of many of the most important facts and 
theoretical views in geology; it is well adapted to the object for 
which it was written. 
Mr. Mather has also published a Sketch of the Mineralogy and 
Geology of New London and Windham counties, in Connecticut, 
with a map. We cannot doubt that these are executed with Mr. 
Mather’s usual accuracy. 
Letters from the Canary Islands, by D. J. Browne, with a litho- 
graphic view of the Peak of Teneriffe, and a Map of the Canary and 
Madeira Islands, and a part of the coast of Africa. 
This is an instructive and interesting work, replete with valuable 
information. 
Prof. H. D. Dewhurst, of London, has recently published in one 
vol. 8vo. with numerous plates the natural history of the Cetacee. 
We have perused this work with much satisfaction ; we presume that 
it is the most complete account of these animals that has been pub- 
lished. 
Mr. Dewhurst, has published also synoptical tables of an improved 
nomenclature for the features of the cranium not only of man, but of 
the various orders of mammalia; also an improved anatomical ar- 
rangement of the regions of the human body. 
