I N D E 



TO VOL. XIV. 



A. 



AcHARD, 248 



Achromatic eye glafTes, 1S9, 388 



Acidificatlan, theory of, ftated by Mayoiiv 

 and the earlier chetnifts, 235 



Air, currents of, 185 



Alburtus, 162 



Allen and Howard's preparation of re- 

 agents, 136 



American antiquities, 271 



Animal fluids, analyfis of, 140 



Apparatus for experiments on fluids de- 

 fcribed, 356 



Arnold's time-keeper?, 64, 273, 492, 

 298, 363, 384 



Arnold, Mr. J. Obfervations by, re- 

 lating to the theory of heat> light, and 

 combuftion, 161 



Arrowfmith, Mr. his new map of Scot- 

 land, 421 



Attituties, various, in handicrafts, 155 



Balance, vibrations of, rendered equal, 



387 

 Balance fpring for time-keepers, account 



of the invention of, 363 

 Barber's defigns for farm-buildings, &c, 



extract from, 213 

 B.nker, Dr, 342 

 Batometer, a cheap and portable one, i 



« [tq. 

 Bath waters, analyfis of, 333 

 Bayen's inference that metals are oxided 



by the air, 23a 

 Eeccher's chemical hypothefis, 162 

 Bennet (herb) compared with quinquina 



in a medical point of view, 60 

 Berey, Mr. on thunder ftorms, 416 

 Berkeley's ** Sirius" extract from, 90 

 Berkeley, Bilhop, on the incicafed weight 



of calcined metals, 232 

 Vol. XIV. 



Berthoud's claim to the invention or Jm* 

 provement of a detached efcapement 

 for time-keepers, 289, 296, 364.— 

 His controverfies with Le Roy, 373 



Berlin Royal Academy of Sciences, priie 

 queftions by, 182 



Black, Dr. on the propenfity of edge 

 tools to recover their edge on being 

 laid afide, 89.— His difcoveries in 

 chemlftry the ground of Lavoifier's 

 theory, 91.— On Light, 164.— His 

 ledlures, 236 



Blair Dr. aplanatic refradion, 191 



Block-printing, improvements in, 192 



Bog-mofs ufed in Ireland to make breadj 

 230 



Boftock, Dr. on the analyfis of animal 

 fluids, T40 



Boyle, Mr. his experiments on oxidation, 

 90.— On the calcination of metals, 

 231, 236 



Brande, Mr. W. his chemical experi- 

 ments on guacum, 389 



Brewfter, Mr. David, on achromatic eye* 

 pieces, 189, 191, 3S8 



Brighton Cliff, a fingular appearance 

 viewed from, 340 



Brugnate'li, 165 



Bruhl, Count de, 288 



Buchave, 63 



Buchan, Dr. his account of an appear- 

 ance of Brighton Ciiff fesn in the air 

 by refledion, 340 



C, 



Cadell, Mr. communication from, con- 

 taining Count Rumford's obfervations 

 on the difperfian of the lights of lamps, 

 &c. 22 

 Capillary Tubes, theory of, 249 

 Carving, a cheap and elegant fuiftitutc 

 for, 193 



aflluS} 



