182 Miscellanies. 
Besides these there are four hundred and thirty five separate maps 
and charts. Of the above, Mr. Maclure has presented the following: 
Folio, "at at = ° 612 
_ Quarto, - - - - 1,131 
Octavo, - - - - 2,699 
Duodecimo, &c. - - - 790 
5,232 
The report, speaking of the donations of Mr. Maclure, says— 
_ It is with no ordinary pleasure and gratitude that the committee 
take this occasion to record the fact, that of the above volumes no 
less than five thousand two hundred and thirty two have been deri- 
- ved from the munificence of a single individnal, William Maclure, 
Esq., President of our institution. To these are added nearly all 
the separate maps and charts.” 
The catalogue is divided under heads according to subjects, and 
these are arranged alphabetically by the names of the authors, and 
at the end is a general index of the whole. In a library for refer- 
ence the value of the arrangement must of course depend on the 
facility with which that reference can be made ; this, in the present 
instance, the committee in their report assure usis very great. ‘This 
library is not exclusively confined to natural history, but embraces 
books on many other departments of science and useful knowledge. 
3. Lyell’s Geology. First American from the Fifth and last 
London Edition, 2 vols. 8yo. Philadelphia. James Kay, Jun. & 
Brother. 1837.—For our opinion of this admirable work we would 
refer to Vol. xxrx. p. 358, of this Journal. Since those remarks 
were made, a fifth edition has appeared in London with various ad- 
ditions and improvements, and from this last edition the one before 
us has been published with all the cuts. The style and mechanical 
execution of the American edition are creditable to its_ publishers 5 
the four duodecimos of the author are comprised in two handsome 
octavos of about five hundred and fifty pages each. Few American 
republications of English scientific books, so far as we have seen, 
will bear a very close comparison with the originals ; particularly in 
the paper, engravings and cuts. In some instances we are sorry tO 
say, these republications have done little credit to our character and 
the state of our arts ; cheapness and an extensive sale have too often 
