C 57« J 



INDEX TO VOL. XXIII. 



AcARUS. On avnnety of, 3 



AcharcTs method of extracting 

 sugar from beet root, 14 



Add, loracic. Its Utility in ana- 

 lyses, 1 46 



. A new one, 128 



, carbonic. Medicinal use 



of, 68 



■ , f,uonc. Found In animal 

 matters, 264 



< , gallic. To prepare, 74 



, mur]at:c. Production of, 

 257, 285 



. , n'Ur'ic. Action of, on ani- 

 mal substances, 255,326 



, o.xy- muriatic. Action of, 



on red oxide, 61 



— -, phosphorous. Action of, 

 on mercury, 56 



Agriculture, 16, 26 



JkocVs patent, 374 



Alligator, Kori/j American. On, 



AlhJbie suipburets. Oa decom- 



posin;;, ^O 



Alum. To prepare, from pyrites 



and clay, 65 



Aurora. Goats of, 57 



Animal matters. Action of nitric 



acid on, 255, 326; fluoric 



acid found in, 264 



Anne Si's patent, 287 



An'imony a medicine for hogs, 



c- ■ ' + 



Antiquaries. Society of, 1S4, 

 270,366 

 Aptera. On a genus of, 3 



Aquatinta engraving. On, 130 

 Armou.r. Patent for, 19 r 



Astronomy, 93, 1 90, 284, 372 

 Atmosphere. On constitution of, 



349 



Azimuth compass. Patent for, 95 



Barlow s specific for tinea ca« 

 pitis, 69 



Barometer. Variation of, be- 

 tween the tropics, 289 

 Barojila's Galvanic pile, 283 

 Barton on North American alli- 

 gator, _ 143 

 BarueVs apparatus for Impreg- 

 nating gases, 317 

 Barytes. Sulphuret of, to de- 

 compose, 72 

 Batavian Society, 368 

 Berriman's patent, 374 

 Beet-root. To extract sugar from, 



Bevis. (Dr.) Life of, 247 



Bile. Experiments on, 330 



Biography, 76, 94, 247 



Blight. On, 349 



Bombay Society, 187 



Booh. Ne-zv, 282,360 



Braamcamp on mercury, 56 



Brande on guaiacum, 260, 363 



British Institution for promoting 



the Fine Arts, 27* 



Brozvn's patent, 287 



Burholzon decomposing muriate 



of tin, 112; on nickel and 



cobalt, 193 



Byrne, the engraver. Death of, 



94 



Cahuhw concretions. On, 199, 



29s 



Candles. 



