561 



INDEX TO VOL. XV. 



Acetate of methylene, 88. 



Acids": — anhydrous phosphoric, 250 ; 

 boracic, 21 ; fluoric, 558 ; fulminic, 

 77 ; mellitic, 248 ; purpuric, 491 ; 

 sulphuric, 551; sulphurous, 156; 

 uric, 555 ; veratric, 253. 



Actinometers, 207- 



-^ther, its action on indigo, 334 ; new, 

 488 ; cinnamic and formic, 251. 



Air, effects of mushrooms on, 334. 



Albumen, analysis of, 485. 



Alderson (Dr.) on the difference of 

 colour in different parts of the bo- 

 dies of animals, 330. 



Algebraical equations, on the general 

 solution of, 165. 



Alison (Rev. A.J, notice of, 526. 



Alkaline and earthy bodies, formed by 

 chemical action, 329. 



America, notices of, by Middle-age 

 writers, 284. 



Ammonia, purpurate of, 492. 



Analyses : — of the sesquichloride of 

 carbon, 2 ; of sea- water, 51; of 

 naphthalin, 63 ; of bicarburet of 

 hydrogen, 63 ; of colophonite, 86 ; 

 of hailstones, 252 ; of caseum, 482 ; 

 of albumen, 485 ; of fibrin, 486 ; of 

 thevapour of pyroxylic spirit,42,86. 



Analytical chemistry, notices in, 2. 



Anemometer, Osier's, 215 ; Whe- 

 well's, 216 ; Lind's, 216. 



Anh^'drous phosphoric acid, 250. 

 Annuity on three lives, rule for find- 

 ing the value of, 337. 

 Antarctic Expedition, 153, 518 ; the 

 instmctions prepared by the Royal 

 Society for, 177. 

 Antimony, on distinguishing it from 

 arsenic, 282 ; its action on bichlo- 

 ride of mercury, 494. • 

 Arabic and Boetian numerals, on 



the, 447. 

 Arsenic, on distinguishing it from 



antimony, 282. 

 Artesian wells in Essex, 533. 

 Assay of gold, on the, 310. 

 Astronomy : — on the theory of astro- 

 nomical refractions, 3, 105, 385,497 ; 



Plateau's memoir on irradiation, 68 

 variable stars, 197 ; eclipses, 198 

 stars at present undiscoverable, 335 

 observations of shooting stars, made 

 in August, 372, 441. 



Atkinson (Mr.) on some slabs of fis- 

 sile or slaty micaceous sandstone 

 impressed with worm-tracks, 406. 



Atmosphere, on the colours of the, 25. 



Atmospheric electricity, short sum- 

 mary of the laws of, 219. 



Atmospherical phenomena, instruc- 

 tions for observing, 195. 



Aurora, observations on, 196 ; geo- 

 metrical measurement of the height 

 of, 327. 



Bakerian Lecture : Mr, Ivory on the 

 theory of the astronomical refrac- 

 tions, 3, 105, 385, 497. 



Barometer, standard, 202 ; portable, 

 203 ; marine, 204 ; hourly obsei-va- 

 tions of the barometer, 201. 



Barry's (Dr. M.) researches in era- 

 bryology, note relating to, 159 ; the 

 Royal Medal awarded to, 521. 



Barytes, purpurate of, 492. 



Belgium, on the geology of, 146. 



Benzoate of methylene, 91. 



Berzelius (Prof.) on lantanium, 286. 



Blake (J.) on the mode of operation 

 of poisons, 320. 



Blasting, use of the galvanic battery 

 in, 60. 



Blood corpuscles in the mammalia, 

 495. 



Bohnenberger's electroscope, 219- 



Boracic acid lagoons of Tuscany, de- 

 scription of the, 21. 



Bowerbank (Mr.) on the London and 

 plastic clay formations of the Isle of 

 Wight, 405. 



Bowring (Dr.) on the boracic acid 

 lagoons of Tuscany, 21. 



Brewster (Sir D.) on Prof. Plateau's 

 defence of his theory of accidental 

 colours, 435. 



British Association for the Advance- 

 ment of Science, Birmingham Meet- 

 ing, 330. 



Phil. Mag. S. 3. Vol. 15. Supplement, No. 99. 1839. 



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