CONTENTS. 
Description of a Carr iage-Wheel Guard, ‘by which the Wh al : 
1§ related safe upon the Axis in case of the aes com: 7 or 
out. ‘ ee wee ae e 2 5 ge 
Process ‘for pr cparing, with a Description of some of the Prax aie 
perties of,.the refined Ox Gall... 2. a5 350 i 
“On the Causes of the long Duration of the Chinese Empire 352 
Process for preserving the Canvass m Oil Paintings, and re- 
fuiring Defecis therein. .s as 866 
Experiment on Respiration which had near arly ‘proved faial.— 
Effects of Oxygen Gas in restoring suspended Animation 367 
Case of Retention of Urine succes. sfully treated by puncturin 
the Bladder... .. re 30) 
Some Particulars of the Life of Count BOUGAINVILLE 371 
On the Errors in the Nautical Almanac ..  .. 878, 407 
Supplement to the Memoir on the. Nitrates and Nitrites of 
Leug)--.,. .. 401 
New Inquiries into the Nature of the Liquor oblained by the 
reciprocal Action-of Sulphur and Charcoal ... .. 408 
Experiments on the variable Action of the Electric Column 414 
Description of an efficacious Temporary Rudder... 419 
Report of the Progress of the Sciences in France in 1813 427 
On the Assay of Minerals ly means of the Blowpipe .. 439 
On the Phenomenon. of Arsenic and. other Bodies whitening 
Copper Plates with their Vapour «.. .. 445 
Observations of a polaris, by the Rev. Mr. 333 Evans, of the 
Royal Alilitary Academy, for determining the North Polar 
Distance of that Star at the Beginning of “the Year 1813 446 
Chronological Catalegue of Stones and_other large Masses 
which are presumed to have fallen on the Earth .. 448 
Description of a Sofa invented by Mr. Samuzt James .. 451 
Notices respecting New Books ..  .. «. 218, 379, 454 
Proceedings of Learned Societies 69, 154, 227, 305, 385, 457 
Intelligence and Miscelianeous Articles 70,156, 232,311, 389, 
461 
List of Patents Siete aves ik Rea Ree 
Meteorological Table .. .. 80, 169, 240, 320, 400, 469° 
THE 
