INDEX. 



ACCIDENTS from the sudden de- 

 composition of potash, 146 



Acid contained in sweat, 63— In urine, 

 67— In milk, 72 



Albinoes of Great Britain, account of, 

 81 



Aldebaran, or th« Bull's eye, described, 

 9 



Alkalies, decomposition of, 78, 156 



Allen, Wm. Esq. and W. H. Pepys, 

 Esq. on the quantity of carbon in 

 • carbonic acid, and on the nature of 

 the diamond, 217 



Altitude, meridian, new methods of 

 finding, 324 



Analysis— Of Siderite or Lazulite, 20*-** 

 Of cream of tartar, 29— Of the py- 

 rophysalite, 33— Of animal acids, 63 

 —Of orpiment and realgar, 74— Of 

 the several species of Peruvian bark, 

 108, 203 — Of the fire-damp of coal- 

 mines, 149— Of slate, 380 



Anderson, Dr. J. on home-made wines, 

 356 



Anderson, C. Esq. 318 



Andromeda's head, its situation and de- 

 scription, 5, 173 



Angustura bark, compared with that of 

 Peru, 120 



Animal torpidity, 161 



Antares described, 6 



Aquarius, its situation, 9 



Aquila, described, 6 



Arc of the meridian measured in India, 

 309 



Arcet, M, de, his process for obtaining 

 pure barytes, 2 > 



Arcturus described, 2 



Arips described, 4 

 Vol. XIX. 



Attraction of surfaces, 14 

 Auriga, its situation, 4 



B. 



Banks, Sir J. on the revival of an ob- 

 solete mode of managing strawberry 

 beds, 95— Letter to, on the forma- 

 tion of the bark of trees, 241— On 

 the economy of bees, 253— See 318 



Barclay, Dr. 318 



Bark of trees, formation of, 241 



Bark, Angustura, 120 



of cherry-tree, 119 



of oak, 119 



Peruvian, experiments on several 



species of, 106, 203— Compared with 

 various vegetable substances, 119 



of white willow, 120 



Barker, Mr. 335 



Barraud, Mr. description of his mercu- 

 rial pendulum, 258 

 Barytes, pure, preparation of, 23 



hydroguretted sulphuret of, 25 



Bason, mineral, in Wales, 361 

 Bassia butyracea, the, described, 372 

 — — obovata, 376 



Beccaria, M. 50, 59 



Bees, natural history and economy of, 



250 

 Bennet, Mr. his electrical experiments, 



44 

 Berger, Dr. on the heights of several 



places in France, 272 

 Bergman, M. on orpiment and realgar, 



74 

 Bernhardi, M. see Trommsdorff 

 Berthollet's electrical experiments, 51 

 Berzelius, see Hisinger 

 Black, Dr. 199, 201 

 Blight in wheat, its cause and preven* 



tion, 338 



b Blind 



