SECTIONS. INDEX OF SUBJECTS, 



255 



and determining, by J. Miliigan, 1858, 



138. 

 Haidinger's brushes, Prof. Stokes on, 1850, 



20. 

 Hail, formation of, as illustrated by local 



storms, W. R. Bowditch on the, 1858, 35. 

 , Prof. Stevelly on the origin of, 1834, 



566. 

 Hail-storm, remarkable, E. Garner on a, 



1856, 39. 

 — — , Dr. Buist on the question what is a, 



1855, 38. 



, Indian, Col. Sykes on an, 1850, 43. 



Hail-storms in India, remarkable, Dr. Buist 



on, 1851, 31; 1855, 31. 

 Hair, Dr. O'Connor on the sudden falling 



off of the, from the head, eyebrows, and 



eyelashes, 1843, 84. 

 Halarachne halichceri. Prof. AUman on the 



structure of the larva of, 1847, 74. 

 Halcyon smyrnensis, Prof. H. E. Strickland 



on, 1842, 70. 

 Halecium labrosum and H. nanum, new 



species of Sertularian zoophytes, by J. 



Alder, 1858, ia6. 

 Hahchoerus griseus of the coast of Ireland, 



1836, 98. 

 Halichondria suberea, Prof. H. R Strickland 



on the mode of growth of, 1853, 72. 

 Halicore australis, J. S. Brazier on the oil 



of the, 1859, 257. 

 Halogens, on the compounds of the, with 



phosphorus, by Dr. Gladstone, 1849, 38. 

 Haloid salts in solution. Dr. G-. Wilson's 



experimental demonstration of the exist- 

 ence of, 1839, 41. 

 Hammer, steam-, new double-acting, W. 



Naylor ona, 1858, 218. 

 Hancornia speciosa (artificial gutta percha 



and india-rubber). Chevalier de Claussen 



on the, 1855, 103. 

 Hand, human, an index of mental develop- 

 ment, by R. Beamish, 1857, 118. 

 Hands of a Guarani man, on an episcaphoid 



bone in the, by Prof. Retzius, 1855, 1 34. 

 Hansteen's magnetic intensity instrument, 



effect of three iron cylinders upon, when 



placed in a given position, 1851, 9. 

 Harbours, tidal, on the importance of peri- 

 odical engineering surveys of, by J. Boult, 



1855, 147. 

 , design for safety, by Capt. J. Saunders, 



1852, 129. 

 Hare, alpine, of Scotland, and the hare of 



Ireland identical, 1843, 68. 

 Harmotome, Dr. Tamnau on newly dis- 

 covered three -twin crystals of, 1843, 38. 

 Harrington's electrizer, notice of, 1835, 106. 

 Hartwell variable star atlas, 1860, 36. 

 Hatchets, stone, of the Esquimaux, Sir E. 



Belcher on the, 1860, 1 54. 

 Heat, central, and density of the globe. Dr. 



Stevenson Macadam on the, 1850, 88. 

 , on the distribution of, in the interior of 



the earth, by Dr. P. A. Siljestrom, 1858, 23. 

 — — , distribution oi, over the surface of 



the British Isles, Prof. Hennessy on the, 

 1857, 30. 

 Heat disengaged in combustion, Dr. Ure on 

 a new calorimeter for measuring the, 



1839, 20. 



of combustion, J. P. Joule on the elec- 

 tric origin of the, 1842, 31. 



of combination. Dr. Andrews on the, 



1843, 32. 



, notice of the progress of experiments 



on the conduction of, by Prof. J. D. 

 Forbes, 1851, 7. 



, Prof. Kelland on the conduction of, 



1840, 15. 



produced by the influence of the mag- 

 net upon bodies in motion, L. Foucaidt 

 on the, 1855, 1 1 . 



, Prof. W. Thomson on certain mag- 

 netic curves with application to the theory 

 of, 1852, 18. 



, expansion of stone by, A. J. Adie on 



the, 1834, 569. 



, R. Roberts on the expansion of solids 



by, 1850, 16. 



, J. P. Joule on the mechanical value 



of, 1843, 33. 



, J. P. Joule on the mechanical equiva- 

 lent of, 1845, 31; 1847, 55. 



, J. P. Joule on the mechanical equiva- 

 lent of, and on the constitution of elastic 

 fluids, 1848, 21. 



, radiant, B. Stewart on, 1859, 23. , 



, radiant, experiments on, involving 



an extension of Provost's theory of ex- 

 changes, by B. Stewart, 1858, 23. 



, radiant, M. Melloni's experiments on, 



1833, 381, 382. 



, radiant, Rev. Prof. Powell on certain, 



points connected with discoveries relative 

 to, 1835, 9. 



, radiation of. Dr. H. Hudson on phe- 

 nomena referred to the, 1835, 9. 



, Rev. Prof. Powell on a point in the 



wave-theory as applied to, 1840, 14. 



, Dr. T. Woods on the amount of, pro- 

 duced by the combination of several me- 

 tals with oxygen, 1852, 39. 



■ ' , effects of, on the colour of dissolved 

 salts. Dr. J. H. Gladstone on the, 1857, 8. 



•■■ evolved by a current in a conductor 

 arranged so as to produce exterior work, 

 L. Soret on the, 1857, 19. 



developed by friction in air, experi- 

 ments on the, by Dr. J. P. Joule, 1859, 12. 



, long-continued. Rev. W. V. Harcourt 



on its effects on mineral and organic sub- 

 stances, 1834, 576. 



of vaporization of water, J. P. Joule 



on the, 1849, i. 



of vapours, latent, Prof. W. J. M. Ran- 



kine on practical tables of the, 1855, 208. 



, on the conductivity of various sub- 

 stances for, by W. Hopkins, 1857, 70. 



, on the formation of, by the union of 



the two fluids of electricity, 1844, 41. 



— , — , on the products of the action of, on 



