484 



INDEX. 



other basic compounds of the copper 

 and silver families, 156 ; on the com- 

 position of certain essential oils, 437. 



Kelp, determination of iodine in, 468. 



Kuhlman (M.) on the chemical re- 

 actions of water, 234. 



Lactate of urea, 478. 



Laming (R.) on the primary forces of 

 electricity, 44, 333. 



Lassaigne (M.) on the iodide of ami- 

 din, 312; determination of iodine in 

 kelp, 468, 



Laurent (M.) on the borates of potash, 

 317. 



Lavender, oil of, its composition, 444. 



Lead and oxides of antimony, separa- 

 tion of compounds of, 473. 



Lecanu (M.) on the composition of the 

 blood, 311. 



Lepidosiren paradoxa, a new anomalous 

 reptile, 479. 



Levels carried across Northern Syria, 

 account of, 146. 



Light, its action on solution of cyano- 

 gen, 77 ; on the dispersion of, 222 ; 

 its action upon the colour of the river 

 Sponge, 457. 



Lime, sulphate of, and water, new com- 

 pound of, 325. 



Lithia, processes for preparing, 393. 



Lithic acid, its decomposition by nitric 

 acid, 477. 



Lubbock (J. W.) on a property of the 

 conic sections, 83. 



Magnesia, sulphate of, and water, new 

 compound of, 313. 



Malcolmson (J.) on the occurrence of 

 Wealden strata at Linksfield, 226. 



Marjoram, oil of, its composition, 439, 



Matteucci (M.) on the polarization of 

 platina electrodes, 469. 



Mercury, on the reduction of the chlo- 

 rides of, 431 ; binoxide of, its solubi- 

 lity in water, 477. 



Meteoric iron from Claiborne, analysis 

 of, 350. 



Meteorological observations, for May, 

 79; for June, 159; for July, 239; 

 for August, 319; for September, 399 ; 

 for October, 479. 



Meteorological observations made at 

 Bermuda, 12. 



Metereological Table: — for May, 80; 

 for June, 160; for July, 240; for 

 August, 320 ; for September, 400 ; 

 for October, 480. 



Minerals, siliceous, decomposed by hy- 

 drofluoric acid, 473. 



Mining, school of, in the University of 



Durham, 1. 

 Moseley (Prof.) on the geometrical 



forms of turbinated and discoid 



shells, 464. 

 Murchison (R. L) on the Oar's rock, 



Sussex, 387 ; description of Coggan's 



self-registering thermometer and ba- 

 rometer, 456. 

 Naphtha, specific inductive capacity of, 



423. 

 Nevins (J. B.) on the reduction of the 



chlorides of mercury, 431. 

 Newton's (Sir I.) explanation of the 



rainbow, on, 9. 

 Nitric acid, reagent for, 393 ; decom- 

 position of lithic acid by, 477. 

 Nitrogen, its influence on the growth of 



plants, 223 ; on its evolution during 



the growth of plants, 455. 

 Nitrogen gas, reagent for, 393. 

 Northampton (Marquis of) on spiroli- 



nites in chalk and chalk-flints, 386. 

 Oil of rosemary, composition of, 437 ; of 



marjoram, 439; of peppermint, 440; 



of pennyroyal, 442 ; of spearmint and 



lavender, 444. 

 Organic acids, on the separation of, 25. 

 Orthocerata, on some species of, 388. 

 Owen (R.) on a specimen of Plesiosau- 



rus macrocephalus, 225. 

 Oxalic acid, on its separation from 



other organic acids, 25, 

 Oxide of phosphorus, method of obtain- 

 ing it pure, 315, 

 Pectates, metallic, 397 ; of potash, soda 



and ammonia, 472. 

 Pectic acid, analyses of, 471. 

 Peligot (M.) on sugars, 237. 

 Pennyroyal, oil of, its composition, 442. 

 Peppermint, oil of, its composition, 440. 

 Phillips (R.), remarks on chloretheral, 



313. 

 Phosphorus, method of obtaining pure 



oxide of, 315, 

 Physiology of vision, 461, 

 Planet, fluid, on the equilibrium of a, 



81. 

 Plants, cause of circulation in, 153 ; their 



action on the azote of the atmosphere, 



1 54 ; the influence of nitrogen on the 



growth of, 223 ; caoutchouc in, 478, 

 Platina electrodes, on certain properties 



of, 379 ; polarization of, 469, 

 Plesiosaurus macrocephalus, 225. 

 Poisons, metallic, on reducing, 394. 

 Poisson (M,), remark by Mr. Ivory on 



an article of, 274. 



