4 
NATURALISTS LIBRARY. 
Long man Jy Co.'x hooka continued-. 
ZOOLOGY 14 Vol*. Y U J. I. Pn-Iuninary Essay II. 
Principles of Ck&dhuninii The Natural System, Geography 
of Animals, — ,111. Cotiehrtlogy — IV. Ouadruj^ds V. Birds 
—VI. & VII. Popular lot reduction to Insects .VI [I. Rep- 
tiles, Fish, Polypes, A c, By W. Swajnsmn, Esq. F. R. S. 
&c IX. Systematic Arrangement of Insects, By Mr Swain- 
son ond J. O. WfcsTVToou, Ehj, F. L. S. Ac, — X. At XI, 
Habits and Instincts of Animals, — XU. Menageries.— XIII. 
Taxidermy, Bibliography, Ac. By XI r Swain-son.. — XIV. 
Man, 
BOTANY l Vol. 
MINERALOGY I VoL By Ammaku Levi, F.G. S„ 
&c. 
GEOLOGY I Vol. By the Rev. W, D. Conybeahe, 
F. R. S. &c- 
* m * The whole work being nearly all written, will be pub- 
lished at short intervals in Dr Lakokea's C a hi net Cyclq- 
rAmiA. 
London : Longman & Co, and John Taylor. 
This day is Published, 
OBSERVATIONS on the PR I- NERVATION of 
HEARING, and on the CHOICE, USE, and ABUSE of 
EAR- TRUMPETS, Ac. 8vo, jilt, Price J*, 
Contents Physiology of Hearing— Diseases of the Ear — 
Deaf iiosa from Sea- bathing, Blows, Fright, Ac, — Cautions how 
to avoid Deafness. — Infant Deaf and Dumb often curable — 
Acoustic Chair — Artificial Ears, Ac.— Tin Trumpets preferable 
to all others — New Caoutchouc Instrument— Novel Acoustic 
and Opticid Invention, Ac. 
Lon dun : Longman & Co. ami II. Rknshaw, Strand. 
Of whom also may be had, 
CURTIS on the PRESERVATION of SIGHT, and 
on Spectacles, Ac. Is, 
CUR I IS on the DISEASES of the EAR. 5th Edit. 
7s. tid. boards. 
CURTIS m the DISEASES of the EYE. 7s. Cd. bds 
CUlt ITS on the DEAF and DUMB. 2d Edition 
10a. lid. boards. 
