= a - ee 
appearance. Tt will embrace not only all 
that_is contained in former editions, but 
likewife much new matter tranfmitted ex- 
preisly for the work from America. Be- 
fides a corre& likenefs of the venerable 
philofopher, it will contain eight engrav- 
Inge oF fcientific fubjeéts, executed by 
Mx. Lowry. 
The third edition of the Life of Lord 
Nelfon, by Mr. Joshua WHITE, is jut 
ready for delivery. Fram the numerous 
additions, and valuable communications 
with which the author has keen favoured 
by officers and gentlemen intimately con- 
nected with the departed hero, this book 
may be confidered as an entirely new 
work. It will be embellifhed with a new 
fet of plates; and a complete account of 
the funeral and of his lordfhip’s will, is 
fubjoined by way of fupplement. 
The Spring Courfe of Leétures at St. 
Thomas’s and Guy’s Hofpitals, will com- 
mence in the following order: 
At St. Thomas*’s.—-Anatomy and the Ope- 
vations of Surgery, by Mr. Curne and Mr. 
AsTLey Cooper, the 21ft of February, 
The Principles and Pratice of Surgery, 
by Mr. Asrtey Coorer. 
At Guy’s.—Praétice of Medicine, ky Dr. 
BasinoTon and Dr. Curry, beginning of 
February. 
Chemiftry, by Dr. BanrnGTon and Mr, 
ALLEN. 
Theory of Medicine and Materia Medica, 
by Dr. Curry. ee. 
Experimental Philofophy, by Mr. ALLEN. 
Midwifery, and Difeafes of Womea and 
Children, by Dr, Haicu Ton. 
Phyfiology, or Laws of the Animal (Eco- 
nomy, by Dr. HarGuron. 
Clinical Lectures on fele&\Medical Cafés, 
by Dr. Basrneton, Dr. Curry, and Dr. 
Marcer. : 
On the Strnfture and Difeafes of the Teeth, 
by Mr. Fox. 
On Veterinary Medicine, by Mr. Core- 
MAX. 
Thefe feveral le&ures are fo arranged, 
that no two of them interfere with each 
other in the hours of attendance ; and the 
whole is calculated to. torm a complete 
courfe of medical and furgical inftruction. 
Terms and other particulars to be learnt 
of Mr. Stocker, apothecary to Guy's 
Hoipital, who 1s alfo empowered tc encer 
gentlemen as pupils to fuch of the lectures 
as are given at Guy s. 
Mr. Mitseurne’s Spring Courfe of 
Leétures on Anatomy, Phyfiology, and 
Operations of Surgery, will commenge on 
Moxday the. 24th inffant, at his heufe in 
Sr.-James’s-fireet. 
In our laft (p. 553), we noticed the 
difsevery {aid to have been made by Paes 
«Literary and Philofophical Intelligence. 
egy 
[ Feb. 1, 
chiani refpefting the muriatic acid. We 
underfiand that Mr. Davy, Mr. HENRY; 
and other Englifh chemifts, have repeated 
the procefles, but without fuccefs; of 
courfe there is reafon to doubt whether 
this acid has yet been reduced to any con- 
ftituent principles. 
Mr. NortTHMORE has lately given an 
account of fome experiments on the re- © 
markable effeéts which take place in the 
gafes, by change in their habitudes, or 
eletive attractions, when mechanically 
comprefied. From two pints of hydrogen, 
and the fame quantities of oxygen and 
nitrogen eompreffed in a glafs receiver of 
three cubic inches and a half, water, and 
probably nitrous acid, were obtained. 
From carbonic acid gas and hydrogen, 
the refult was a watery vapour, and a gas 
of rather an offenfive {mell. 
condenfation of, two pints of nitrogen, 
it affumed an orange red-colour; three of 
,oxygen were added, which caufed the co- 
lour to difappear, though at firft it feemed 
rather deeper. A moift vapour, coating 
the infide of the receiver, arofe upon the 
compreffion of the two parts of hydrogen, 
which moifiure was ftrongly acid to the 
tafte ; it coloured litmus, and, when very 
rauch diluted with water, it acted upon 
filver. 
Dy. TRotTrer has lately propofed mie. 
thods, (1) of preventing the formation 
of noxious airs in mines; and, (2) for 
removing them when formed. To attain 
the fir objeét, he propofes that mines 
frould be well ventilated; that there 
fould be no ftagnated water in them, and 
no chips of wood nor horfe-dung fhould 
be allowed to mix with the water that 
may become ftagnant. To deftroy fire- 
damp; he employs ftrong acids ina ftate 
of vapour. The vapour feizes the hydro- 
gen, water is recompoted ; but the caloric 
difengaged during the combination of the 
oxygen and hydrogen converts it into 
fteam, fo that it is not feen in a condenfed 
ftate. To remove the choak-damp, the 
ufe of water is recommended, by means 
of 2 common fire engines. The tube be- 
ing direéted to the fpot where the-damp is 
known to lic, the water will take up the 
«hele, and will then tafte acidulous ; 
lights will burn, and animals breathe, in 
the place whence the vapour was diflodg, 
ed. Quicklime mixed with water would 
rendey it more efficacious. 
Mr, Roperr Bancks has: fimplifted 
the contsuction of a graphometer for 
meafuring the angles of eryitals : the in- 
ftrument generally ufed confifts of a femi- 
circles and a pair. of compaflcs legs 
Upon the: 
: 
