462 



INDEX. 



Hastings (the Marchioness of) on the 

 tertiary beds of Hordwell, Hamp- 

 shire, 1. 



Haughton (Rev. S.) on the reflexion 

 of polarized light from the surface 

 of transparent bodies, 81. 



lliivesine, analysis of, 50. 



Heale (Dr. J. ft.) on the distribution 

 of the blood-vessels, &c. in the 

 lungs, 217. 



Heat, on the transmission of, through 

 organic structures, 121. 



Heineken (N. S.) on an unusual lu- 

 minous appearance in the sky, 387. 



Helmholtz (Prof.) on the methods of 

 measuring very small portions of 

 time, and their application to phy- 

 siological purposes, 313. 



Herapath (T. J.) on a quick approxi- 

 mative method of estimating mi- 

 nute quantities of iodine, 185. 



(Dr. W. B.) on the discovery of 



quinine and quinidine in the urine 

 of patients under medical treat- 

 ment with the salts of these mixed 

 alkaloids, 171; on the manufacture 

 of large available crystals of iodo- 

 quinine for optical purposes as ar- 

 tificial tourmalines, 346. 



Herapathite, on the optical properties 

 of, 284. 



Hydrodynamics, on some theorems 

 in, 338. 



Hydrogen, on a new oxide of, 51 ; on 

 the formation of, and its hoino- 

 logues, 231. 



Imaginaries, on the calculus of, 273. 



Indigo, on the frequent occurrence of, 

 in human urine, 226. 



Iodine, on a quick approximative me- 

 thod of estimating minute quanti- 

 ties of, 185; on the pretended oc- 

 currence of, in milk, eggs, and the 

 atmospheric air, 237. 



Iodo-quinine, on the optical properties 

 of, 284. 



Jamin (J.) on the condensation of 

 gases at the surface of solid bodies, 

 156. 



Joule (J. P.) on the specific heat of 

 air under constant pressure, 143; 

 on the thermal effects of elastic 

 fluids, 230. 



Kamtz (M.), observations on ter- 

 restrial magnetism, 67. 



Laplace's equation, observations on, 

 273. 



Leroux (F. R.) on the employment 



of heat, sulphuric acid, and deut- 

 oxide of manganese in Bunsen's 

 battery, and on a means of greatly 

 diminishing the cost of nitric acid 

 for this battery, 388. 



Light, experiments and observations 

 on the properties of, 148 ; on the 

 reflexion of polarized, from the sur- 

 face of transparent bodies, 81 ; on 

 the change of refrangibility of, 304 ; 

 on an oscillatory theory of, 403. 



Limits, on the new rule of, 210. 



Logic, on the symbols of, 69. 



Lohmeyer (Dr.) on the pretended oc- 

 currence of iodine in milk, eggs, 

 and the atmospheric air, 237. 



Luminous appearance in the sky, on 

 an unusual, 387- 



Lunar circles, remarks on, 448. 



Lungs, on the distribution of the 

 blood-vessels, &c. in the, 217. 



Lyte (F. M.) on an instrument for 

 taking soundings, 344. 



M c Donald (Dr. J. D.) on the anatomy 

 of the antennae in a small species 

 of crustacean, 65. 



Madder, on the constitution of the 

 colouring matters of, 187- 



Magnetic meridian, on the application 

 of the law of the conservation of 

 energy to the determination of the, 

 on board ship, when out of reach 

 or out of sight of land, 140. 



Magnetism, observations on ter- 

 restrial, 67' 



Magneto-electric machines, on an im- 

 proved regulator for, 309. 



Magnus (Prof.) on the condensation 

 of gases by smooth surfaces, 334 ; 

 on the origin of tar in defiant gas, 

 420. 



Marcet (Prof.), researches on evapo- 

 ration, 385. 



Masson (M. A.) on the motion of 

 elastic fluids* and the theory of 

 wind instruments, 449; on some 

 effects produced by electric cur- 

 rents, 451. 



Mathematics and mathematicians, 

 196. 



Mercury, on selenide of, 272. 



Metals, on thermic conduction in, 382. 



Meteorological observations, 79, 159, 

 239,311,391,458. 



Meteorological observations made in 

 4 balloon ascents, account of, 146. 



Mica, on the distribution of tourma- 

 line in, 265. 



