]t49 



SECTIONS. — INDEX OF AUTHORS, 



ture from phenomena observed at its 

 surface, 1860, 35. 



Hennessy (Prof. H.) on the principles of 

 meteorology, 18G0, 44. 



, suggestions relative to inland navi- 

 gation, 1860, 211. 



Hennessy (J. P.) on the origin and elimi- 

 nation of Euclid's " Eeductio ad absur- 

 dum," 1857, 3. 



on certain pathological characters of 



the blood-corpuscles, 1857, 113. 



on agricultural and manufacturing in- 

 dustry, 1857, 162. 



on Dr. Whewell's views respecting the 



nature and value of mathematical defi- 

 nitions, 1858, 3. 



on some properties of a series of the 



powers of the same number, 1858, 4. 



on the causes of the fall in price of 



manufactured cottons, 1858, 178. 



on some of the results of the Society of 



Arts' Examinations, 1858, 180; 1859, 214. 



on the inclination of the planetary 



orbits, 1859, 34. 



* on some questions relating to the in- 

 cidence of taxation, 1859, 216. 



* on certain properties of the powers of 



numbers, 1859, 248. 



Henry (Dr. C.) on gaseous interference, 



1836, 54. 



Henry (Prof), electrical researches by, 



1837,22. 

 on canals and railways in America, 



1837, 135. 



on the heat of the solar spots, 1845, 



6. 



on the plan adopted by the Smith- 

 sonian Institution for investigating the 

 meteorology of North America, 1852, 26. 



Henry (Dr. W.) on the philosophical cha- 

 racter of Dr. Priestley, 1831-32, 60. 



on the torrefaction of yellow copper 



pyrites, 1831-32, 78. 



Henslow (Rev. Prof.) on the geographical 

 distribution of the plants of Cambridge- 

 shire, 1831-32, 606. 



-^ — on crystals of sugar in Ehododendron 

 ponticum, 1836, 106. 



on Cecidomyia tritici, 1841, 72. 



on nodules, apparently coprolitic, 



from the red crag, London clay, and 

 greensand, 1845, 51. 



on a specimen of Papaver orientale, 



1845, 72. 

 on detritus derived from the London 



clay and deposited in the red crag, 1847, 



64. 

 -. , notice relative to the adornment of an 



African dress, 1854, 99. 

 on the triticoidal forms of ^gilops, 



and on the specific identity of Centaurea 



nigra and C. nigrescens, 1856, 87. 



on the supposed germination of 



mummy wheat, 1860, no. 



*Henwood (Mr.) on naval architecture, 

 183G, 130. 



Hen WOOD (W. J.) on the higher tempera- 

 ture which prevails in the slate than in 

 the granite of Cornwall, 1837, 36. 



on some intersections of veins in the 



Dolcoath and Huel Prudence mines, in 

 Cornwall, 1837, 74. 



on the expansive action of steam in 



the Cornish pumping engines, 1837, 

 129. 



Herapatii (J.) on the velocity of sound, 

 1831-32, 559. 



Herapatii (W.) on the aurora borealis, 

 1836, 32. 



on arsenical poisons, 1836, 67. 



on lithiate of ammonia as a secretion 



of insects, 1836, 70. 



, analysis of King's bath, Bath, 1836, 



70. 



on a new process for tanning, 1888, 71. 



Herschel (Sir J. F. W.) on the absorption 

 of light by coloured media, 1833, 373. 



on the principle and construction of 



the actinometer, 1833, 379. 



on some results obtained by Prof. 



Eorbes on the diminution of the intensity 

 of the solar rays in traversing the atmo- 

 sphere, by means of the actinometer, 1833, 

 380. 



on the vitreous humour of the eye of a 



shark, 1838, 15. 



, observations on stars and nebulic at 



the Cape of Good Hope, 1838, 17. 



on Ilalley's comet, 1838, 19. 



on a very remarkable property of the 



extreme red rays of the prismatic spec- 

 trum, 1839, 9. 



on some coloured photographs, 1841, 



40. 



on a photographic process by which 



dormant pictures are produced capable 

 of development by the breath, or by 

 keeping in a moist atmosphere, 1843, 8. 



, contributions to actino-chemistry — on 



the amphitype, a new photograpliic pro- 

 cess, 1844, 12. 



on a model of the globe of the moon 



in relief, 1845, 4. 



letter to, from Prof. Oersted, on the 



deviation of falling bodies from the per- 

 pendicular, 1846, 2. 



, address as President to the Chemical 



Section, 1858, 41. 



Hess (Prof.) on an apparatus for the ana- 

 lysis of organic substances, 1839, 57. 



Hetling (W.) on a new instrument for re- 

 moving ligatures, 1836, 124. 



Heurteloup (le Baron) on a new method 

 of administering chloroform, 1857, 51. 



Hewett (Capt.) on the rise and fall of tide 

 in the middle of the North Sea, 1841, 32. 



Heywood (J.) on the geology of the coal 

 district of South Lancashire, 1837, 77. 



— — on the education in the Polytechnic 

 School at Paris, 1841, 96. 



on the comparative statistics of the 



Universities of Oxford and Cambridge in 



