INDEX. 



the only re-agent to be depended on, 

 1S4— Examination of the produfts ob- 

 tained fronj, 185 — Recapitulation, 186 

 — Conftituent parts of, 187 



Apparatus for drying precipitates and for 

 congelation, 212 



»■ Eudiometric, contrived and ufed 



by Dr. Hope, 210 



■' for meafuring the aliquot parts 



of an inch, 247 



— — for meafuring the force and re- 

 gulating the emilBon of fteam, 249 



• for railing water by %tmofpheric 



prefRjre, 217 



Aqueous humour of the eye, chemical ex- 

 amination of, 22 



Arachis hypogaea cultivated for economi- 

 cal purpofes, 224 



Arfeniated hidrogen gas, chemical analyiis 

 and properties of, 200 



Aurora Borealis does not affeft telefcopic 

 viCon, 13 



B. 



Barks, aftrlngcnt, chemical examination 

 of, 31 — Properties of the refidual por- 

 tions of, 36 



Barytes not to be depended on in the ana- 

 lyfis of fulphitcs, 94 



Baume, 131 



Baunach's obfervatlons of St. John's wort, 

 z%6 



Sawens, 253 



Bayen, 181 



Bergman, 74 



Beril, Saxon, component parts of, 215 



Berthollet on a method of giving the ap- 

 pearance of cotton to hemp or flax, 



Bertholon, 188 

 Bertrandi, 22 

 Betancourt, 260, 267 

 Biggin, 34 



Biot, 135 



Bifmuth, difference between hot and cold 

 fjlutions of, 63 



Black, Dr. his theory of heat, 25 — His 

 portable furnace, 273 



Blagden, Sir Charles, 281 



Body and mind, philofophical opinions re- 

 fpefting, 161 



Bones, foffil, found in America, 247 



Bonnet, 173 



Boftock, Dr. on the cfflorefccnces found 

 on walls, 109 



Bournon, Count de, 187 



Brandy, method of giving its flavour ti> 

 malt fpirits, 140 



Briflon, 158 



Buckholtz, 63 



Bucknall, 124 



Buflfon, 216 



Buildings, their yjcinity Impedes telefco- 

 pic vifion, 14 



C. 



Calamines, opinions of authors refpefting, 

 74 — Analyfis of that of Bleyberg, ib. 

 —External charafters, ib.— Component 

 parts of, 76. — Analyfis of the Somer- 

 fetihire, ib.— External charafters, 77. 

 Component parts of, ib- — Analyfis •£ 

 the Derbyfliirc, ib. — External charac- 

 ters of, ib. — Component parts of, 78, 

 — Analyfis of the eledlric, of Regba- 

 nia, ib.— Component parts of, 79— 

 General obfervations, 80— Chemical 

 theory of the compofition of, 82— Has 

 not been yet difcovered as an uncom- 

 bined calx of zinc, 85 



Calorimeter, its ufe as an inftrument de- 

 feftive, 29 



Camelford, Lord, 2 



Candles, on the light emitted by different 

 fizes of, 90— Rules for computing the 

 proportion of, 91 



Carbonate 



