INDEX. 



575 



nia with anhydrous salts, 141 ; on a 

 combination of the anhydrous sulphuric 

 and sulphurous acids, 321. 



Roy (T.) on the ancient state of the North 

 American Continent, 201. 



Royal Geological Society of Cornwall, 

 anniversary meeting of, 478. 



Royal Irish Academy, 131. 



Royal Society, 89, 189. 



Rubies, artificial, 563. 



Ruby glass, on the colouring matter of, 137. 



Ruminantia, arrangements of the, 469 ; 

 Camelidae, 471 ; Cervidae, 471 ; Moschi- 

 dse, 472 ; Capridse, 473 ; Bovidae, 473. 



Saccharates, baryta and strontia, 156; po- 

 tassa and soda, 156. 



Salmonidse, on the affinity of fossil scales 

 of fish with those of the recent, 300. 



Salsaparin, composition and properties of, 

 337. 



Salts, on the constitution of, 397. 



San Fernando, mine of, 22. 



Sap, circulation of, in Cissus hydrophora, 

 525 ; distribution of, in plants, 526 ; ela- 

 boration of, 527. 



Saunton Downend and Baggy Point, on the 

 raised beaches of, 117. 



Schoenbein (Prof.) on the peculiar voltaic 

 inactivity of bismuth andiron, 544. 



Schulke, on the composition of amylum, 

 422. 



Sedgwick (Prof.) on the physical structure 

 of Devonshire, 311. 



Seed-lac, production of, 156 ; composition 

 of, 157. 



Scwalik hills, on a fossil monkey from the 

 tertiai y strata of the, 393 ; on the remains 

 of a quadrumanous animal found in the, 

 208. 



Shepherd (Dr.) on Edwardsite, 402. 



Ships, on the dry-rot of, 192. 



Shock-multiplier, correction in Heineken's 

 paper on the, 567. 



Shooting stars, on, 268. 



Siliceous and calcareous products, 403. 



Silver, action of chromic acid upon, 489. 



Sivatherium, discovery of a head of the, 

 208. 



Skey (F. C.) on the structure of the mus- 

 cular fibre of animal and organic life, 194. 



Smyrna, on the geology of, 202. 



Soap-bubble, on a permanent, 375. 



Solanaceae, curious property of the alkalies 

 of the, 334. 



Solly (E.) on the cow tree of South Ame- 

 rica, 452. 



Sowerby (J. De C.) on his new genus, 

 Tropaeum, of fossil shells, 118. 



Stars, shooting, 567. 



Stearate of methylene, on, 487. 



Stearic aether, on, 487. 

 Strickland (H. E.) on the geology of 

 Smyrna, 202 ; on the upper formations 

 of the new red system, 318. 

 Strix castanops, characterized, 474. 



Strontia, on the hydratesof baryta and, 301. 

 Structure in the ashes of plants, 13. 

 Struve, on the siliceous contents of plants, 



339. 

 Suffolk, on the geology of, 106 ; physical 

 features and geological structure of, 111. 

 Sulphate of copper, its use for exciting vol- 

 taic electricity, 145. 

 Sulphonaphthalic acid, 565. 

 Sulphuret of carbon, on the preparation of, 



221. 

 Sulphurets of lime, on the, 195. 

 Sulphuric and sulphurous acids, anhydrous, 



on a combination of, 321. 

 Sylvester (J. J.) on the optical theory of 



crystals, 461, 537. 

 Sylvic acid, examination of, 164. 

 Syria, on the earthquake in, 204. 

 Taylor (Mr.) on the solubility of arsenious 



acid, 482. 

 Taylor ( R. C.) on the geology of Holguin 



in Cuba, and the mineral region on the 



N.E. coast, 17. 

 Tea-plant, natural history of the country 



where found, 390. 

 Temperature of insects, 189. 

 Terrestrial magnetic intensity, experiments 



on, 58, 254. 

 Thermo-electric spark, on the, 398. 

 Thermo-electricity, on, 304. 

 Thomson (Dr. T.) on the right rhombic 



baryto-calcite, 45. 

 Tides, researches on the, 1 95. 

 Tobin (Sir J.) on the cast-iron ring money 



found on board the wreck of a vessel, 



131. 

 Tovey (J.) on an alleged demonstration 



of Fresnel relative to the wave-surface, 



524. 

 Towers ( G. ) on the reception of coloured 



fluids in plants, 533. 

 Toxodon platensis, on the cranium of the, 



205. 

 Tropaeum, a new genus of fossil shells, 1 1 8. 

 Turner (Prof. E.) on the colouring mat- 

 ter of the greensand formation, 36. 

 Turpin on the occurrence of acicular cry- 

 stals in the tissue of the Aroideae, 444. 

 Unger on the occurrence of the carbonate 



of lime on the leaves of Saxifraga?, 445 ; 



on the reception of coloured fluids in 



plants, 535. 

 Valentin on the structure of vegetable 



membrane, 437 ; on the dots of spiral 



tubes, 441. 

 Vegetable membrane and fibre, chemical 



composition of, 421. 

 Vegetables, the system of circulation in, 



528 ; on the secretory organs of, 530 ; 



reception of sap, the secretion and nutri- 

 tion of, 531. 

 Viscin, production of, 157. 

 Voltaic batteries, on the construction of, 



76 ; on the employment of iron in the 

 construction of, 150. 



