C 4-73 ] 



INDEX TO VOL. XLIX. 



/iCIDS. On constituents of, 241,330; 

 action of, on tiiKincl antimony, 402 

 Acoustics, 2iG 



W<iaw.5 on vision, 110 



Aerial navigation, 197 



African expedilwii. Misfortunes of, 7ii, 

 153,231; further accounts of, 385 

 AgriciiUure, 151, 391, 405, 412; Sin- 

 clair's, 454 

 AliemarU's (Earl of) eiper. on vegeta- 

 tion of barley, 151, 229 

 Allen on chenucal philosophy, 8 1 

 Alloys, various, 107 

 -Almanac, Naulica!. Errors in, 305 

 Alps. Geology of, 334 

 Amianlhiis fused, 47 

 AiMiyses of Bridlington spring, -jO; 

 of a new species of lac, l!90 ; of rye, 

 &c. 339 i of waters of Baden, 388 

 Ammalcules. On, £83, 392 

 Antediluvian irmi, 172 

 Antimony. Action of hydrochloric 

 acid on, 402 

 Antiquaries. Society of, 296 

 Arnalt on eiponential equations, 321 

 Arsenic, united with copper, 109 ; test 

 Of, 299 ; in Wootz, 377 

 Arsenicaled hydrngen gas. New pre- 

 paration of, 280 

 Aiparagus. Culture of, 412 

 A^tkma. Remedy for, 419 

 Astrtt-almospherual science. On, 132, 

 211 

 Attronomy, 76, HU, 149, 157, 237, 316, 

 393, 39C, 468 

 Atmospheric air. A prize question, 466 

 Atomic theory. On the, '-'41 

 Attraction, Capillary. On, 222, 22:3 

 Aurora iorealis, 153, C23, 236 

 Azote. Its relation to nutrinifnt, 148 

 Azi,te and oxygen. Compounds of, 21 1 , 

 S30 

 Uauder on rotatory motion, 41?) 

 /taking ol bread, 16 1, 173, 195 

 Hailry. Ex per. on vegetation of, 151 , 

 220 

 Barometer. New mountain, 220 

 Ita. ometric pressure. A query, 8,; 

 Basalt. Theories respecting, 207; co- 

 ral and shells found in, 223; stratifi- 

 cation of, V52, 255, 297 

 Baih Lit. and Phil.Soc, 221,296,377 

 Btaiijoy', i-iper, onairengthof timber, 

 377 



Bamell's theorems for interest, 179; 

 equation of payments, £69 



Beryl fused, 43 



Sevan's sliding rule, 187 



Beudant's eiper. on molluscse, 335 



Biot on terrestrial magnetism, 7, 9j 

 Blasting of porous wet rock, 254 



Blow-pipe, hydro'oxygen. Exper. with, 

 47, 143,308 

 Boiler of sleam-hoat, exploded, 300 



Bonnard's geology of Saiony, 334 



Books, New, 68, 144, 218,293, 334,375, 

 454 

 Botany, 41, 234, 337 



Bread, improved by carbonate of mag- 

 nesia, 161; impaired by sugar, 175; 

 instructions for making from da- 

 maged corn, 191 

 Brew iter on human eye, 29tf 

 Bridaes, Chain. On, 371 

 Bridliv^ton ebbing and floimng spring. 

 Analysis of, 231 

 Brochant on the structure of the Alps, 

 y34 

 Brussels Royal Academy, 379 

 Buddie on safety-lamp, 9<t 

 Burckhardt on sun's parallax, S93 

 By water on animalcules, 283, 3i>2 

 Calculi, urinary. On, 188 

 Calcutta Asiatic Society, 71 

 Capillary attraction. On, 222, 223 

 Capstan. Improved, 451 

 Cary's Meteorological Tables, 80, 160, 

 240, 320, 400, 47'2 

 Catarrh. Remedy for 466 

 Cavern. A most extensive, in America , 

 222 

 Chaudft on mixtures of tin and anti- 

 mony, 402 

 Chemical Philosophy. Wulker's, 950; 

 Allen's, 81 

 (','hrmists. Caution to, 234 

 Chrysoprase submitted to blowpipe, 

 450 

 Cinnamon. Nat. hist, cf, 221,294 

 Climates. Geography cf, S40 

 Coal gas. Substitute for, S09 

 Coal mines. On ventilating, 57, €L' ; 

 inundation of one, 73 ; fotiod ip South 

 An: erica, Si 9 

 Collier-life-preserver, 384 

 Colour. On ancient namf« for, 49 

 C'loMTing, On, 2<' J 

 C'u/.imn, Electric, additions to, 55 



