Index. 



479 



Problem, mathematical, 418, 



Procellariapellagica, on, 455. 



Prout, Dr, on a case of ptyalism, 96 — 

 on the pink sediment of urine, 97 — 

 on the teetli, 113 — on pure potash, 

 151 — on the urine of the horse, 150^ 

 — on the fluid of hydrocephalus, 151. 



Ptyalism, case of spontaneous, 96. 



Pyromallc acid, on, 23. 



Pyrouric acid, on, 25. 



R. 



Raffles, Sir S. on the dugong, 52. 



liafflesia,on the genus, 'x95. 



Rain-gauges, on, 177, 421 — self-regis- 

 tering, on, 228. 



Rain, singular, on, 226. 



Ranunculaceae, on, 115. 



Reptilia, on, 105. 



Roots, bulbous, in water, on the vege- 



*»tationof, 231. 

 osaceae, on, 116. 



Rot, dry, on, 392. 



Royal Society, reports of, 52, 145, 453. 



Sowerby, Mr. on the crystallization of 



platinum, 233 — on a meteorite,234 — 



on karphollte, 310. 

 Steam, on the specific gravity of, 242. 

 Steinmann, Prof, on karpholile, 72. 

 StCTensoii, Mr. on the fly bridge over 



the Scheldt, 269— on the bed of the 



German Ocean, 311. 

 Stone, new method of operating for, 55, 

 Stotze, M. on wood vinegar, 68. 

 Stromeyer, M. on a meteoric stone, 308 



— on polyhaliie, 427. 

 Strychnia, on, 28. 

 Succinic acid, Dr. John, on, 23. 

 Sulphate of barium and fluoride of cal- 

 cium, compound of, 48. 

 Sulphur, chloride of, on, 12 — on the 



acids of, 20. 

 Sulphuretted hydrogen, on the specific 



gravity, 259. 

 Sulphuric acid, on the weight of atom 



of, 327. 

 Sulphurous acid, on the specific gr.ivity 



of, 256. 

 Surrey Institution, lectures at, 314. 



8. 



Salts, on, in general, and on their solu- 

 bility In water, 35. 



Sandstone old red, fossil bones In, 393. 



Saussure, M. on the decomposition of 

 starch, 87. 



Scarth, Mr. on the procellaria pella- 

 gica, 455. 



Sea water, on, 85. 



Sea, Dead, on the waters of, 86. 



Secretion, on, 113. 



Silliman, Dr. nn fossil bones in old red 

 sandstone, 393. 



Smithson, Mr. on fibrous metallic cop- 

 per, 46 — on a native combination of 

 sulphate of barium and fluoride of 

 calcium, 48 — on a compound of sul- 

 phuret of lead and arsenic, 100 — on 

 plombgomme, 100. 



Society, lloyal, proceedings of, .52, 145, 

 453. 



Geological, proceedings of, 55, 



147. 

 455. 



Linnaean, proceedings of, 225, 



Royal Geological, of Cornwall, 

 annual report of, 455. 



philosophical, of Harlem, report 



of labours of, for preceding year, 459. 

 Soda, on the weight of atom of, 327. 

 Sounds, on, Inaudible by certain ears, 



145. 

 Spring, boiling, In the harbour of Milto, 



85. 

 Snowdon, on the height of, 1 16. 



Tabasheer, on the optical and physical 

 properties, of, 50. 



Taddey, M. on gluten, 88. 



Taroslawl, temperature of, 234. 



Teeth, on, 113. 



Tellurium, on, 13 — on the ore of, 100. 



Temperature, on, of ditferent places in 

 Great Britain, 370. 



Thibierge, M. on mustard, 90. 



Thomason, Mr, metallic vase, 229, 



Thomson, Dr. T. sketch of the chemical 

 sciences for 1819, by, 1 — descriptioa 

 of apparatus for analyzing organized 

 substances, 3 — on bleaching powder, 

 10 — on the chloride of sulphur, 12— 

 on lead, 16 — on the acids of sulphur, 

 20 — on the new alkalies, 27 — on the 

 hydrocyanate of ammonia, 38 — on a 

 new acetate of lead, 39 — on meteoric 

 ■tones, 67 — on naphtha, 83 — on coals, 

 83 — on a si ngular substance from coal, 

 85 — on a boiling spring In Milto, 85 

 — on the waters of the Dead Sea, 86— 

 on camphor, 89 — on picrorael, 92 — 

 on a urinary calculus, 96 — on fibrous 

 prehnite, 97 — on gehlenlte, 98 — oa . 

 the specific gravity of gases, 161, 241 

 — on the ferrochyazate of iron, 216— 

 on yeast as a manure, 307 — on the 

 composition of yeast, 307 — on the 

 word calomel, 309 — on the chromate 

 and bichromate of potash, 321 — oa 

 the true weights of barytes, potash, 

 soda, lead, sulphuric acid, nitric acid, 

 muriatic acid, and chromic acid, 33T 



