ina 53. Philosophical ye arire 
Cant waa OF cians 249. 
I) On the Nature and Laws of Friction, By, Mr. Tho- 
‘ly MAS TREDGOED. ; 
Wea ' II.:On Roads and Wheel-Carriages. By Mr. BENyanin 
Ih ifs WiInGRove. 
“9 III. On the Scheme oF a Perpetual Full Moon. By Mr, 
ASQ) Henry Merkve. z 
wi IV. A Postscript to the Paper “ On the. Swallow” inserted 
hese in No, 246. By Mr. Gavin Inatis. - 
V. On the Manufacture and Uses of Animal Ciarcoats 
« known by the Name of Ivory Black, &c. By the Chevalier 
Capit pe Gassicourt. - ae 
). VI. On new Combinations of Oxygen and Acids By 
M. L.J. Treward. ‘ 
4 VII. Description of an cit Pantie: prepared ‘erotrs 
ee the Lithic or Uric Acid. By Wititiam Prov, M.D, 
e =6VIIIT. On the Question « Whether Music is necessary to 
\\ the Orator,—to what Extent, and how most readily attain- 
Wable?” By Henry Urineron, Esq. < “ 
em © «LX. New experimental Researches on some of the leading 
% Doctrines of Caloric ; particulurly on the Relation between | - 
the Elasticity, Temperature, and latent Heat of different 
§\ Vapours; -and on thermometric Admeasurement and Capa- 
city. By Axvrew Ure, M.D... - . Lee 
X. On Specific Heat. By Mr. Josep Luckeocx, of 
Birmingham. - - , ia 
XI. ‘Notices respecting New Bosks. - - 
XII, Proceedings of Learned Societies, - c 
gry Royal Society —Glasgow Literary Sceiety—C Cork Society. 
s sip for promoting Knowledge.— —Royal Institute of France. 
a Royal Academy: of Sciences, Paris, ——Royal Academy of. 
iW lise Sciences, Bellés. Lettres and Arts, Rowen.—2 Academy of 
Ne: Sciencés, St. Petersburg.— Academy of Medicine, Paris, i 
SIN — Society of Medicine, Marseilles. —Royal Medical Society, Sy 
Bourdeaux. 
XIII. Intelligence and Miscellancous Articles: 2.2: 6880! 
S.  Cadmium.— Larpic Acid; —Lithia—Lithiam— Plati- 
ei. nuny.— W oodanium. —Hydroguretted Carbonic Oxide 
"EASA Starch-Sugar.—Red Suow.—Potatoes,—To destroy Insects, 
\—Seed-Corn.—American Sea Serpent. — Singular Phasno- | 
menon.— Wire Bridge.—New Moving Power "Phosphate 
es of [ron found in Britain: —On Correspondents —List of te 
mie tents.—Asironiomy. —Meteorological ‘Tables. 
Sra | 
Se Rees Communications for this Work, addressed to ihe Editor, § 
Ek i Pickott Place, Temple stk! will meet wi ith €ver Li attention.” 
é gicHARD AND ARTHUR ey Pi PRINTERS, SHOE LANE, Prahoy 
oe 
