~ 
GCONTENTS. ¥ 
i of M.Faperont’s Difcovery of a Method to imitate - 
tPe es 
Floating Bricks of the Ancients ee ie) 
Experiments to determine how Jar Charcoal is a Non-Con= 
dutior of Heat. By Cit. Guyton - - 182 
Account of a remarkable fiery Meteor feen- in Gafcony on 
the aath ‘of July 1490 ; by M, Bauvin, Profeffor of 
Philofophy at Pau: with Jome Obfervations on Fire= 
Balls and Shosting-Stars, by Profeffor CHLUADNI -aé 
Wittenberg - s o - 19% 
ccount of a fingular Inflance of Atmofpheric Refraétion 
In a Letter from WitLiam Latuam, Efg. F.R.S. and 
A.S. to the Rev. HENRY WuitFriELp, D.D. F.R.S. 
and A.S. - - - ~ 232 
Experiments on, and the Manner of diflinguifbing, feveral Di/- 
eafes by the Urine. By Mr. CruicksHANK - 240 
On the fafcinating Power of the Rattle-Snaké, with Jome 
‘Remarks on Dr. Barvon’s Memoir on that Subjed. By 
Profeffor BLUMENBACH ~ - 25% 
Account of a new Method to cure and prevent the Plague, 
- as practifed at Smyrna. Publifhed by Count von BERCH- 
SOLD - - ~ - - 256- 
Examination of the Experiments and new Obfervations of 
G. Pearson, M.D. on Human Urinary « Concretions 
and & Comparifon of the Refults obtained by that Chemift 
with thofe of SCHEELE, BERGMAN, and fome of the 
French Chemifts. By Cit.Fourcroy = ”° 263, 380 
Obfervations on the Garden Spider, and the Method it-eme ° 
\ ploys to confirudl its Web. By an anonymous Author 272 
On the Syflem of Forces. ByJ.C.DELAMETHERIE 299 
Objervations. on the Satellites of the Georgium Planet, and 
the two innermoft Satellites of Saturn. By Dr. J.T. 
ScHrorer, F.R.S. &c, - - - 283, 
Exiraét of Experiments and Obfervations on the Ue of Pho/- 
| phorus adniiniftered internally, By AvpHonsus Lerot, 
Profeffor at the Medical School of Paris = 290 
On the Proce/s of Bleaching with the oxygenated muri 
atic Acid; and a Defcription of a new Apparatus Sor 
bleaching Cloths with that Acid diffolved in Water, with- 
out the Addition of Alkali. By Turoruitus Lewis 
Rupp, B/y.: > - - - - - 293 
A Differtation on Painting in Oil in a Manner Similar to 
that praétifed in the Ancient Venetian School. By Mr. 
Timoruy SHELDRAKE - - 302 
Some Account of the Travels of the tavo French Naturalifis 
Brucuiere and Oviviser -" = = 312 
Ona New Mufical Infirument invented by Dr. CHLADNI; 
with 
