-_* 
386 Miscellanies. 
of Combustion or Electro-Negative Bodies, Non-Metallic Combustibles or 
Electro-Positive Bodies, Metals, Sinise Bodies, Vegetable and Animal, 
with an Appendix. 
This order is probably the most unexceptionable. There is no pete 
arrangement ; none that will avoid inconvenient anticipations, or that 
will bring i into one group all the members of the same subject. The best 
course is to anticipate as little as possible ; to explain the nature of the 
materials which we must employ so far as to render our processes intelli- 
gible, and to revert, as far as necessary, so that either sooner or later, every 
thing will be explained. This course Dr. Beck has judiciously pursued, 
and his work is a perspicuous and condensed abstract of the science, and 
is well adapted to the “— for which it was written. 
14. Notice of a Manual of Conchology siacecsiida to the system lad 
down by Lamarck, with the late improvements by De Buainvitie, for 
students; by "Trosas Wart rt, M. A.; in a letter to him from Isaac Tes, 
Esq., dated Philadelphia, December 19, 1838.— Dear Sir—I have ex- 
amined your ‘ Manual of Conchology,’ formed from the works of Lamarck 
and Blainville, and consider it well adapted to the introduction of the stu- 
dent into the science of conchology. The plates, which are from the ex- 
cellent work of Blainville, are generally very well done, and calculated to 
aid the tyro in obtaining a paras! of the genera of this interesting 
branch of natural history. 
~“T sincerely wish you success in this work, which must have cost you 
much labor. Should it pass to another edition, I would advise the inser- 
tion of a plate with the various parts of shells, with proper definitions 
in the peat The name of each shell should. also be upon the plates 
throu, 
%: 
~ Mr. - has, ilk good yeast, cbattctiled the plates of this work, 
and it is no small advantage that they are printed on excellent paper, 
which will bear using both by the quiet student and the traveller. Offi- 
cers of the navy and in the merchant service, will find this a very con- 
venient, and we doubt not, useful manual, by which to direct their obser- 
vations while collecting shells to enrich their own cabinet as well as those 
of yoni institutions and of preety individuals.—Epbs. 
15. Hideo ices on the late Dr. NaTHANIEL Saacura —The death of 
this distinguished man produced a strong impression on the public mind, 
and called forth many tributes of respect. ~Three eulogiums were pro- 
nounced, severally, by the Hon. Judge White, at Salem, and at Boston by 
Rey. Alexander Young, and by Hon. John Pickering, the latter before the 
American Academy, May 29, 1838. Mr. Young’s discourse was, by 
particular request, revised for this Journal, and appeared in the October 
Ae ne Se 
