t 374 3 

 INDEX TO VOL^ VII. 



ACETITE of lead Ancom^oit^ by Volta's Galvanic pile, 343.. 



Jc'id offugar, to ^xtraft, from fpirit of wine, 136. 



ulcldum pinguc, a principle in fixed alkali, 246, z6o. 



Affinities, Humboldt's remarks on chem'tcal, 369. 



Africa, news from Horneman the traveller in, 94. 



jilialies, on the conftituent principles of fixed, 76, 189, 247, 367. 



^lumine, charafter of, and means of difcovering in analyfes, 852. 



/Imalgamation, notice refpcfting, 180. 



Amazon Jlone, analyfis of, 256. 



Amber 'varntjh, Nyftrbm's procefs to prepare, 232. 



Avimonia, on the manufafture of, 85. 



-..- — produced in Galvanic experiments, 339, 342. 



— decompofed in Galvanic experiments, 346. 



Amoureux (Dr.) obfervations on ants, 152. 



Analyfn of mineral waters, account of Kirwan's eflay on, 81, 



Annljfis of human and animal bones, 131. 



Ana.lyf-.s. Emeralds; pyroxene of Etna ; granite, 254. 



— — — — Farinaceous chlorite ; tourmaline ; zcolithc ; lepidolite, 



. Green fcld-fpar ; pumice-ftonc, 256. 



Chromate of iron ; a calcareous ftone, 237. 



Animal earth, tranfitlon of, to calcareous earth, 446. 

 Antique vafe, defcrlption of the Lanti, 361. 

 Ants, on the poifon of, and hints for deihoying them, 152. 

 Aromatic oils, on the method of obtaining, certain, 88. 

 Aftronomy, a valuable MS. difcovered rcfpefting, 82. 



' , telefcopic experiments by Dr. Herfchel, 327. 



Atmofphere, on variations of the, 54. 



, on tides in the, 353. 

 Axotf whether a fimple or a com,pound body, 2a i. 



Bacchanalian vafe^ defcription of the Duke of Bedford's dntigue, 



Barometer, on aTjeriodical variation of the, 353. 



Barytes, charafter of, and means of difcovering in analyfes, iS2> 



Batavian Society at Haarlem^ prize queftions by, 269. 



Beddoes, (Dr.) notice from, 96. 



Beet-root f beer ma le from, 95. 



— — , experiments to obtain fugar fi-om, X13, 121, 206. 



Berthollei'i 



