TO CORRESPONDENTS. 
Mr. Watsn’s Paper has been received, and is under consideration. j 
Mr. Gatsrartx’s Communication on the Figure of the Earth will appear in 
our next Number. 
PHARMACOPGIA LONDINENSIS, 
Iterum recognita et retractata, 1824, p. 6. 
“ ACIDUM ACETICUM FORTIUS,” 
vel 
** Acidum Aceticum & Ligno destillatum.” 
|B es CONCENTRATED ACETIC ACID, agreeable to the Sample 
furnished at the request of the Committee of the Royal College of 
Physicians, may be had of the Manufacturers, BEAUFOY & CO. South 
Lambeth, London. 
CATON’S WORKS. 
This day was published, price 5s. 
PRACTICAL TREATISE on the SYMPTOMS, TREAT- 
MENT, and CURE of SYPHILIS; containing Observations on the Diseases © 
immediately or remotely connected with it, as Derangements of the Bladder, Urethra, ' 
Ulcerations, Eruptions of the Face and Skin, Gleets, &c. with Remarks on Mercury, and 
its Effects on the Constitution; interspersed with select Prescriptions. By T. M. 
CATON, Surgeon, late of the united Hospitals of St. Thomas and Guy’s. 
A POPULAR TREATISE on the PREVENTION and CURE of the DIF- 
FERENT STAGES of ASTHMA and WINTER COUGH, with new and suc- 
cessful Instructions for the Prevention and Treatment of Asthmatic Fits, 3s. 
POPULAR REMARKS, MEDICAL and LITERARY, on NERYOUS DE- 
BILITY, RELAXATION, HYPOCHONDRIAC and HYSTERICAL DIs- 
EASES, containing an Inquiry into the Nature, Prevention, and Treatment of those 
diseases called Nervous, Bilious, Stomachic, and Liver Complaints; with Observations 
on Low Spirits, and the Influence of Imagination on these acute and distressing Dis- 
eases, &c. 3s. 6d, 
A New Edition, price 3s, 6d. with Cases, 
PRACTICAL OBSERVATIONS on the DEBILITIES, NATURAL and 
CONTRACTED, of the SYSTEM, in which the Force of Dangerous and Volup- 
tuous Habits are minutely investigated ; including copious Observations on the Theory 
of Generation, Fluor Albus, &c. &c. 
A TREATISE on INDIGESTION; to which are prefixed, some general Obser- 
vations on Serofulous and Cutaneous Diseases, price 3s. 
A PRACTICAL TREATISE on FEMALE DISEASES; exhibiting the Cha- 
racter, Symptoms, and Treatment of the most important Diseases to which the Female 
System is subject, at peculiar Periods of Life; comprising an elementary Work for 
Students, and a Guide to the general Reader, 3s. 6d. 
Printed for Messrs. Sherwood and Co, 20, Paternoster-row ; C, Chapple, 66, Pall- 
mall; and Bowen, $16, Oxford-street, London. 
ENGRAVINGS IN THE PHILOSOPHICAL MAGAZINE, 
illustrative of the following Subjects: 
Vol. LV. 1. Comet’s Path of July 1819.—2. Annular Eclipse of the Sun, 
Sept. 7.—3. Mr. Lane's Instrument for gathering Fruit; Mr. Youne’s 
Mode of preparing Opium from Papaver somniferum; and Captain For-— 
mMAN’s Essay on a Property in Gg ae Mr. Curnsert’s Hydro-pneu- 
matic Apparatus, &c.—5, Capt. FormAn’s Essay on the Reflection, &c. 
of Light; Mr, C, Bonnycast ez on the Influence of Masses of Iron.on the 
Compass. 
