INDEX. 



507 



Potash, ferro-prafliiaie of, remarks on 



M. Gautier's preparation, 484 

 ■ ■ ■ ■ sulphate of, 467 

 Powder, on the inflammation of, when 



struck by brass, 20T 

 Power, microscopic, of various lenses, 



80 

 Priestley, Dr., on the relation of gase* to 



respiration, 141 

 Pritchard, Mr. A., on the forming of 



diamonds into microscopic lenses, 15 

 Proth^eite, a new mineral, discovered in 



the Tyrol, 226 

 Protocarbazolate of mercury, 213 

 Prout, Dr., on the composition of 



simple alimentary substances, 481 



Quadrupeds, remarks on some supposed 



to be extinct, 350 

 Quartz, peculiar crystals of, by Mr. W. 



Phillips, 223 

 Quinia, rewards for the discovery, 229 

 , sulphate of, preparation of, 482 



Raffles, Sir Stamford, relates that the 



tapir exists in Sumatra, 861 

 Raphael, his painting of the dispute on 



the sacrament, 1 1 

 principle in his compositions, 



II 

 Raspberries, red and white Antwerp, 169 

 Red cabbage, infusion of, a chemical 



test, 278 

 Reevesia, new genus of plants named, 



109 

 Reeve, Dr. Thomas, 844 

 Reeves, Mr., genus of plants sent by 



him from China, and named Reevesia, 



109 

 Reflector, Amician, 17 

 Refraction, single, its superior light, 1 6 

 Reinagle, R> R., Esq., discourse on the 



oval and elliptic curves, 1 

 Repulsions, on peculiar physical, by 



M. Saigny, 455 

 Reynolds, Henry Revell, M.D., his 



personal elegance, 33 i 

 Rheine, a new substance from rhubarb 



218 

 Rhubarb, Buck's (rheum undulatnm), 



168 

 upon forcing garden, by Mr. 



W. Stothard, 173 

 Rive, M. A. rJela, observations on bro- 

 mine, 465 

 Robertson, Mr. John, on fruit-trees, 170 

 Rocks under the surface of theaea^how 



discoverable, 198 

 Rome ; accidental causes of malaria,51 

 Rosalndica, branches budded upon the;i 

 190 ' 



Roses, method of increasing the odour 

 of, 228 



Rosetta stone, the, its importance to 

 learning and history, 178 



Rowing pins in boats, means of securing 

 them, 460 



Royal Society, proceedings of the, 424 



Royal Navy, architectural education for 

 this service, 26 



Rubens, the coronation of Mary de 

 Medicis : character of the compo- 

 sition, ] 1 



Sacchara, tablets transmitted by Mr. 



Salt from, 311 

 Sail, quantity of in ships, 36 



Salad-herbs, on growing them at sea, 233 



Salamanders subjected to experiments, 



142 

 San Quintino, letter to the Cavaliere, 

 with remarks on M. Champollion*s 

 opinions. 310 



Savart, M. Felix, 67 



Sapphire lenses, by Mr. A. Pritchard, 459' 



Scarborough, Sir Charles,his works, 331 



Screws, on the adhesion of, 453 



Sea-kale, on the cultivation and forcing 

 of, 497 



Selenic acid, 472 



Selenium and oxygen-selenic acid, new- 

 compound of, 471 



Selenium, its separation from sulphur, 

 470 



Sensitive plant, Dr. Mayo's observa- 

 tions on its leaves, 76 



Seppings, Sir R., vessel boik on his 

 system, 28 



Ship-builders, 27 



Ship-building, great principles of the 

 art of, 31 



Ships, French, their great relative 

 length, 31 



Ships with four masts, 37 



Shisak, king of Egypt, identified in the 

 inscriptions at Bubaste, 185 



Sicily, insalubrious villages of, 45 



Sickness and death of Prince Henry in 

 1612, 340 



Sienna, mortality at, 56 



Skeleton of an elephant in a tomb at 

 Mexico, 359 



Smith, Mr. W., on the varieties of the 

 dahlia, 170 



Smyth's, Captain, respecting the cli- 

 mate of Sicily, 45 



Snails, their destruction by eommon 

 salt, by M. Em. Rousseau, 493 



Soapstone used in diminishing friction, 

 455 



Soda liquid, disinfecting of, M. Labar- 

 raque, 84 



