“ THE 
AMERICAN 
JOURNAL OF SCIEN CE, &c. 
Ant. I.—Princieies or Gronocy. 
WE presume, that to many of the readers of this Journal, a per- 
spicuous and condensed account of the principles of geology, must - 
prove both interesting and instructive. 
Such an account as corresponds, in the main, with the views of at 
least a majority of both British and American geologists, is prefixed 
by Mr. John Phillips to his Illustrations of the Geology of Yorkshire. 
This excellent work, a quarto of 200 pages, is accompanied by a 
map, by sections, and by numerous plates of fossil plants and ani- 
mals, especially of shells, contained in the strata of Yorkshire, which 
is one of the most interesting districts of Great Britain 3 a country 
which has proved fruitful in geological facts of great value, both in 
an economical and scientific view. Great Britain contains 4 large 
number of gifted and active cultivators of geology, and many of them 
are not stinted either as to leisure or means. Numerous quarries, 
gravel pits and mines, and an extensive, and frequently lofty, precip- 
itous and broken coast, have multiplied the sources of observation in 
that country, and so well have they been employed, that great pro- 
gress has been made, chiefly in the present century, in exploring and 
elucidating the local geology of Britain. Numerous districts have been 
carefully surveyed, and the Geological Transactions, the Scientific 
Journals, and separate memoirs and treatises, present an astonishing 
amount of information, on a subject which is however both unex- 
hausted and inexhaustible. Among these accounts of local facts, no 
one, except that of Mr. Mantell on the strata of Sussex, can come 
into competition with the late work of Mr. Phillips. A very good 
analysis of it may be found in the Philosophical Magazine for May 
and June of the present year. It is not our intention to present 
either an analysis or a critique of this work, but rather to republish, 
Von. XXIL—No. t. 
