INDEX. 



471 



in " Outlines of the sciences of heat 

 and electricity," 329. 



Prideaux's (John) table of the atomic 

 weights of simple bodies, 161, 423; 

 new scale of equivalents, 430. 



Radiant heat, 329. ' 



Reflection of light by metals, 60. 



Reid's (Mr.) " Elements of practical 

 Chemistry", review of, 449. 



Reuss (M.) on the magnetic polarity of 

 basalt, 179. 



Reviews of books : — Dr. Christison's 

 treatise on Poisons, 276; Supplement 

 to the Amateur's Perspective, 282 ; 

 Col. Thompson's first book of Euclid 

 &c, 285 ; Flora Devoniensis, 375 ; 

 on the genus Unio, &c, 376; Reid's 

 Elements of Practical Chemistry, 

 449. 



Ritchie (W.) on elasticity of threads of 

 glass, 58 ; experiments on heat, 329. 



Roach rocks, 333, 337. 



Rock-basins, on the origin and forma- 

 tion of, 331. 



Rock-salt, various geological positions 

 of, 103. 



Roget's ( Dr.) reply to Mr. Babbage, 73; 

 Mr. Babbage's notes on, 153. 



Rothe-todte-liegende, English equiva- 

 lent to, 348. 



Royal Academy of Sciences of Paris, 

 219. 



Royal Geological Society of Cornwall, 

 461. 



Royal Institution of Great Britain, 68. 



Royal Society, 58, 146. 



Rumker's (C.) corrected elements of 

 the comet in Pegasus ; with M. 

 Valtz's elements of the same comet, 

 50 ; voyage from New South Wales 

 to England, 459. 



Sabine (Capt. E.) notices on a publi- 

 cation by Mr. Babbage, 44. 



Salicine, MM. Pelouze and J. Gay- 

 Lussac on, 303. 



Sand, flowing of under pressure, 68; on 

 the iEolina, 69 ; on the vibrations of 

 strings and rods, 70. 



Sandstone, on the new-red, of Durham, 

 348, 411. 



Sargasso weeds, 459. 



Saturn, on the ring of, 456. 



Scientific bodies, calendar of the meet- 

 ings of, 400. 



Sea-salt, arsenic in, 387. 



Sedgwick (Prof.) and R. I. Murchison 

 on the structure of the Austrian Alps 

 81. 



Sharpe (S.) on the solid of greatest at- 

 traction, 256. 



Shetland, discovery of the chromate of 

 iron in, 226. 



Silver, reduction of nitrate of, 154; alloy 

 of, detected by the magnetic needle, 

 230 ; chloride of, 464. 



Silvertop (Col. C.) on the basin of Al- 

 hama, 1 50. 



Simons (Dr.) on the velocity of sound, 

 60. 



Simple bodies, table of the atomic 

 weights of, 161, 423. 



Societies, learned : — Royal Society, 58, 

 146 ; Royal Academy of Sciences of 

 Paris, 219;' Linnsean Society, 62; 

 Geological Society, 64, 1 47 ; Astro- 

 nomical Society, 290, 456; Royal 

 Geological Society of Cornwall, 461; 

 Royal Institution of Great Britain, 

 68 ; Horticultural Society, 152, 382 ; 

 Geographical Society, 290; South 

 African Institution, 222. 



Socius's reply to Mr. Babbage on the 

 decline of science, &c, 354. 



Soda, bi-carbonate of, 303. 



Solar spots, 78. 



Solar rays, magnetizing power of, 155. 



Solid of greatest attraction, Mr, Sharpe 

 on, 256. 



Sound, on the velocity of, 60. 



South African Institution, 222. 



South (Sir J.) royal annual grant to, 

 232. 



Springs, quantity of water from, 58 ; 

 mineral, 233; 



Squire (T.) on the occultation of Al- 

 debaran July 16th, 1830, 245, 442. 



Starch, preparation of sugar from, 298. 



Stars, Arabic names of, 368. 



Steam-engine, on the ceconomyof, 213; 

 Woolf 's and Watt's patents for, 305. 



Stones, durability of, 224. 



Subsalts, analysis of some, 406. 



Sugar, preparation of from starch, 298. 



Sulphate of potash and copper, 298. 



Sulphur, phosphuret of, 387. 



Sulphuric acid, action of upon zinc, 

 298. 



Swaledale, Mr. Nixon on the heights 

 of the principal hills of, 1, 140, 188. 



Swan, on the new species Cygnus Be- 

 wickii, 128; Mr. Yarrell in reply, 

 167. 



Temperature, decrement of in the at- 

 mosphere, 248; in the Peak of Te- 

 neriffe, 439. 



TenerifFe, narrative of an ascent of the 

 Peak of, 23, 140, 195, 248, 433; 

 height of, 251; volcanoes in, 198; 

 geology of, 433. 



Thompson's, (Lieut. Col.) "The first 

 book of Euclid's Elements," &c. 285. 



Thomson's (Dr.) " Outline of the sci- 

 ences of heat and el ectricity, ' ' remarks 

 on a passage in, 329. 



