*NDEX. 



387 



Loligo brevipinna, 187. 



Macculloch, Dr,onthe method of splitting 

 rocks by fire, 44 — on the distribution 

 of granite and trap in different parts 

 of Scotland, 236. 



Mackintosh, Air Charles, on rendering 

 cloth, &c. water-proof, 150. 



Magnetic needle affected by enclosure in 

 a copper case, 174 — variations of in 

 different places, 174, 175. 



Mammiferous animal, a new species of, 

 186. 



Manchester Memoirs, vol. iv., second 

 series, analysed, 150. 



Manganese, sulphuret of, analysed, 371- 



Membranes, elastic, on the acoustic fi- 

 gures produced on them, 290. 



Meteorological tables kept at Macquarrie 

 Harbour and Hobart's Town, 75 



Meteorological register kept at Canaan 

 Cottage, 19i,384. 



Mexico, botanical intelligence from, 359. 



Mica, analysis of one containing lithion, 

 199 — on the optical structure of it, 

 205. 



Microscopes, on single ones formed of 

 the lenses of fishes, 98. 



Mill, Mr Nicholas, his platinaair pyro- 

 meter, 147 — his right to the execu- 

 tion of it, 338. 



Mineials, on their specific gravity, 67- 



Mohs, Professor, first separates lieulan- 

 dite from Stilbite, 330. 



Monte Rosa, account of it by Baron 

 Welden, 152. 



Moon, Lohrmann's maps of the, 172. 



Mountains, table of the heights of, 156. 



Murray, Mr, en the culture of the silk 

 worm in 1 taly , 59 — on hydrocyanic acid 

 and opium in reference to their counter- 

 poisons, 214. 



Mushet, Mr, his process for alloying cop- 

 per, 149. 



MuscologiaBritannica, Hooker and Tay- 

 lor's, 185. 



Opium, observations on its counter-poi- 

 son, 214. 



Optical phenomenon, 365. 



Paddle scull, account of Mr Waddcll's 

 revolving one, 200, 303. 



Parker, C. S. Ksq., account of his scien- 

 tific losses, 183. 



Parhelion, on an extraordinary one ob- 

 served at Gotha in 1824, 105. 



Patents, list of Knglish ones since June 

 15th 1824, 188, 379— list of Scottish 

 ones since August 13th 1824, 189,381. 



Physalia Arethusa, 370. 



Picrosmine, a new mineral, 370. 



Piper, account of a plant allied to the 

 genus, 9. 



Plagiarism of inventions and discoveries, 

 observations on the, 143. 



Planets, on the masses of the, 1 72 — new 



ones, on the opposition of the, 1 73. 

 Potassium, 177- 



Processes in the useful arts, 148, 339. 

 Pump, a new quicksilver one, 267- 

 Pyrites, capillary analysis of, 371. 

 Pyrometer of platina first proposed by 



M. Guyton, 147 — differential of Dr 



Ureand Mr Mill, 147,338. 

 Rain, increase in the quantity of, 175 — 



quantity of fallen at Manchester, 369 



— on the saline impregnation of, 170. 

 Rice paper, on its structure, 135. 

 Ritchie, Mr William, on Leslie's photo- 

 meter, 321—339. 

 Rocks, method of splitting them by fire, 



44. 

 Roselite, a new mineral, 177- 

 Royal Society of Edinburgh, proceedings 



of, 169, 300. 

 Ruby blende, hemiprismatic, 374. 

 Russia, progress of botany in, 355. 

 Savart on the vibrations of elastic mem- 

 branes, 290. 

 Saws, improvement on thin circular ones, 



151. 

 Schack, Baron de, account of the late, 



182. 

 Sense, on a sixth, in certain fishes, 12. 

 Serviere's clock, with a moveable ball, 



338. 

 Sideroschisolite, analysis of, 37 L 

 Siemen's process fur making brandy from 



potatoes, 151. 

 Siliceous solutions in crystals, 149— 



siliceous stalactites formed by water, 



307- 

 Silk-worm, account of its culture in the 



north of Italy, 59. 

 Skene, Mr, on the emigration of a colony 



of caterpillars, 93. 

 Sluice, on a new self-acting lever one, 



invented by Mr R. Thorn, 1011 — on a 



waster sluice, 102— on a double valve 



one, 288. 

 Snow, red, found to be an Alga, 184. 

 Societies, philosophical, proceedings of, 



169, 360. 

 Sodium, 177. 

 SomervilL, Rev. Mr, his contrivances for 



preventing the accidental discharge of 



fire-arms, 310. 

 Somervillite, optical structure of, 366* 

 Specific gravity of several minerals, 67. 

 Spectacles, Mr Bate's essay on, 379. 

 Stalactites, siliceous, on their aqueous 



formation, 307. 

 Steam-engine, description of the liist 



one, 38. 

 Stevenson, Mr, his account of the Bell- 

 rock Light-house analysed, 100. 

 Stony fragments, 011 their dispersion to 11 

 distance) 208. 



