REPORTS, ETC. INDEX OF SUBJECTS. 



49 



•Hydrodynamics, continued. 



V. Simultaneous oscillations of fluids 

 and solids, 1 5. 



VI. Formation of the equations of mo- 

 tion when the pressure is not sup- 

 posed equal in all directions, 16. 



, vide Hydraulics and Wayes. 



Hydrogen, basifying power of, Prof, John- 

 ston on, 1831-32, 452. 



gas, Prof. Johnston on, 1831-32, 45a. 



, carburetted, evolved from, springs, Dr. 



Daubeny on, 1836, 42. 

 , persulphuretted. Prof. Johnston on, 



1831-32, 454. 

 , phosphuretted, Prof. Johnston on, 



1831-32, 456. 

 . , phosphuretted, muriate, hydriodate, 



and hydrobromate of. Prof, Johnston on, 



1831-32, 464. 

 , sulphuretted, its action on nitric acid, 



Prof. Johnston on, 1831-32, 460. 

 , sulphuretted, evolved from springs. 



Dr. Daubeny on, 1836, 36, 42, 73. 

 Hydrostatics and hydrodynamics. Rev, Prof. 



Challis's report on the analytical theory 



of, 1833, 131-151:— 



1. Motion in pipes and vessels. 



2. Velocity and propagation in elastic 



fluids. 



3. Musical vibrations in tubes. 



4. Waves at the surface of water. 



5. Resistance to the motion of a ball- 



pendulum. 



•: and hydrodynamics, report on the 



theory of capillary attraction, by Rev. 

 Prof. Challis, 1834, 253. 

 , supplementary report on the mathe- 

 matical theory of fluids, by Rev. Prof. 

 Challis, 1836, 225 :— 



Mechanical theory of the atmosphere, 



226, 

 Theory of the velocity of sound, 233. 

 Propagation of sound through liquids, 



244. 

 Theories of elastic fluids, 246. 



, vide Hydrodynamics, Hydraulics. 



Hydrozoa, British, list of, compiled by R. 

 M' Andrew, 1860, 232 ; Corynidte, Sertu- 

 laridas, Calyeophoridfe, Physophoridas, 

 232; Medusidae, Lucernaridas, 233. 



, Irish, 1843, 283; 1857, 235; 1858, 



287. 

 Hygrometer for use in a balloon, on the, 

 1841, 58. . 



and aspirator, improved, 1851, 343. 



Hygrometers, Prof. J. D. Forbes on, 1831- 

 32, 240; 1840,95. 



of the Kew observatory, 1844, 128 ; 



1849, 81 ; 1851, xxviii, 341, 365. 

 Hygrometric sliding rule, on a. 1851, 345. 

 Hygrometry, Prof. J.D. Forbes on, 1831--32, 



239 ; 1840, 95. 

 Hylgeosaurus, fossil, British, Prof. Owen on, 



1841, hi; 1859, 164. 

 Jlyoscyamin, Prof. Johnston on, 1831-32, 

 509- 



Hyperina, British, C. Spence Bate on the, 



1855, 59, 

 Hyposulphite of barytes, Prof, Johnston on, 



1831-32, 481. 

 Hyposulphurous acid, Prof. Johnston on, 



1831-32, .461. 

 , Hyracotherium, fossil, British, Prof. Owen 



on, 1843, 226, 



Ibu language, 1847, 171. 



Icarus of the ^gean Sea, Prof. E, Forbes 



on the, 1843, 134, 187, 

 Ice, specific gravity of, 1831-32, 454. 



, formation of, in reference to the theory 



of radiant heat, 1840, 20. 

 Ichthyology of New Zealand, report on the, 

 by Sir J. Richardson, 1842, 12. 



of the seas of China and Japan, report 



on the, by Sir J, Richardson, 1845, 

 187. 



, vide Fishes. 



Ichthyopterygia, Prof. Owen on the, 1859, 



159. 

 Ichthyosaurus, Prof. Owen on the characters 

 of the genus, 1839, 86. 

 I. communis, 108, 

 I. intermedins, no. 

 I. platyodon, 112. 

 I. lonchiodon, 116. 

 T. tenuirostris, 1 17. 

 I. acutirostris, 121. 

 I. latifrons, 122. 

 I. latimanus, 123, 

 I. thyreospondylus, 124. 

 I. trigonus, 124. 

 Iguanidae, American, 1836, 200. 

 Iguanodon Mantelli, Prof. Owen on, 1841, 



120. 

 Impact upon beams. Prof. E. Hodgkinson 

 on, 1835, 93-116: — 



Conclusions from experiments, &c,, 93, 



Experiments : — 

 Horizontal impacts, 106. 

 Vertical impacts, 112. 

 Impact on bodies sustained by wires, 



US- 

 Imports, report on the animal and vegetable 

 products imported into Liverpool from 

 1851 to 1855, by Prof. T. C. Archer, 1857, 

 254. 

 , animal, vegetable, and mineral pro- 

 ducts imported into the Clyde from 1853 

 to 1857, report on, by M, Connal and W 

 Keddie, 1858, 185. 

 Inclinometer, Prof. Lloyd's, 1842, 8. 



, inductive, Weber's, 1842, 9. 



, Lamont's, 1842, 9. 



Indicator, constant, for steam-engines, 1841, 

 307 ; 1842, 98. 

 Watt's, 1841, 308. 

 Morin's compteur, 1841, 308. 

 Prof. Moseley's, 1841, 310. 

 Theory of the, 1841, 314; the springs, 

 317 ; friction of the pistons, integra- 

 ting wheel, &c., 320 ; formulae for de- 

 termining the work of an engine, 323, 



