REPORTS, ETC. INDEX OF SUBJECTS. 



67 



Photochemical researches, continued. 

 Introduction. 



Photochemical induction, 65. 

 Eeduction of the chemical action of 

 light to an absolute measure, 67. 

 Photographic image, report on the state of 

 our knowledge regarding the, by Messrs. 

 Maskelyne, Hadow, Hardwich, and Llew- 

 elyn, 1859, 103. 



process, wax-paper, employed for pho- 



tometeorographic registrations at the Ead- 

 cliffe observatory, by W. Crookes, 1859, 

 206 ; supplementary notes by C. Cham- 

 bers, 220. 

 Photography, celestial, in England, report 

 on the state of, by Warren De la Kue, 

 1859, 130:— 



Parti. 

 Historical outline, 131. 

 The photographic picture compared 



with the optical image, 132. 

 Kelative advantages of reflecting and 

 refracting telescopes for photo- 

 graphy, 133. 

 Actual process employed at the Cran- 



ford observatory, 133. 

 Desiderata in the machinery for 



driving the telescope, 138. 

 Degree of perfection hitherto at- 

 tained in lunar photography, 139. 

 Lunar phenomena recorded by pho- 

 tography, 140. 

 Stereoscopic pictures of the moon, 



143. 

 Value of photography in the pro- 

 duction of selenographical charts, 

 147- 

 Photography of the planets, 147. 

 Loss of the actinic rays by reflexion, 

 149. 



Part II. 

 Photoheliography at the Kew ob- 

 servatory, 149. 

 Photoheliograph of the Kew observatory, 

 description of the, 1857, xxxiv; 1858, 

 xxxiv. 

 Photometers, Prof. E. Forbes on, 1840, 61. 

 Phronomidse, British, C. Spence Bate on 



the, 1855, 59. 

 Phyllodocidte, Dr. T. Williams on the, 1851, 

 197, 211, 232, 266. 



, British, 1860, 227. 



Phyllopoda, Irish, W. Thompson on, 1843, 

 269. 



, British, 1860, 225. 



Physics in Belgium, M. Quetelet on the 



state of, 1835, 53. 

 Physiological action of medicines, report on 

 the, by Dr. J. Blake, 1843, 115; 1845, 82 ; 

 1846, 27. 

 Physiology, animal. Prof. Clarke's report 

 on, 1834, 95-142: — 



Outline of theoretical physiology, 95. 

 The blood, 116; the corpuscles, 117; 

 structure, 118 ; the lymph, or liquor 

 sanguinis, 120; fibrin, serum, 120; 



Physiology, animal, continued. 



gas, 123 ; analysis, 125 ; the powers 

 which circulate the blood, 129. 

 Heart, 134 ; cause of the heart's action, 

 137- 



of the nervous system, Dr. W. C. 



Henry on the, 1833, 59. 



of the lungs and air-tubes. Dr. C. J. B. 



Williams on the, 1840, 411. 



, organic chemistry applied to, 1842, 



42. 



, vegetable, on the reproduction of the 



higher cryptogamous plants, by Prof. 

 Henfrey, 1851, 192. 

 Physophoridse, British, 1860, 232. 

 Picidje of North America, 1836, 177; of 



Dukhun, 1837, 249; Irish, 1840, 371. 

 Pictorial art as applied to ornithology. Prof. 



Strickland on, 1844, 201. 

 Pigs, on the food of, by J. B. Lawes and 

 Dr. Gilbert, 1852, 327, 331, 338, 347; 

 1854, 422. 

 Pinna, Dr. Carpenter on the microscopic 

 structure of the shell of, 1844, 4, 20 ; 1847, 

 95,130. 

 Pisces, vide Fishes: 

 Placoid£e of the Devonian system, 1842, 87. 



of the Silurian system. Prof. Agassiz 



on the, 1843, 194. 

 of the Devonian system, 194. 

 of the Carboniferous system, 195. 

 of the Permian system, 198. 

 of the Triassic system, 199. 

 of the Oolitic system, 199. 

 of the Cretaceous system, 203. 

 of the Tertiary system, 206. 



of the London clay, 1844, 308. 



Placunida;, Dr. Carpenter on the microscopic 

 structure of the shells of the, 1844, 18 ; 

 1847, 95. 

 Planets and their satelHtes, account of the 

 principal observations, tables, &c. of the, 

 by a B. Airy, 1831^2, 149, 156. 



, perturbations of the, Gr. B. Airy on 



the, 1831-32, 149, 170. 



• and periodical comets, &c., history of 



the, by a. B. Airy, 1831-32, 156. 



, Greenwich observations of the, G. B. 



AiBy's statement on the reduction of the, 

 1840,423. 



■ , photography of the, W. De la Eue on 



the, 1859, 147. 

 Planet's orbit, A. Cayley on the problem 

 of the variation of the elements of a, 

 1857,1. 

 Plantigrada of North America, Sir J. Rich- 

 ardson on the, 1836, 141, 142. 



■ of Dukhun, Col. Sykes on the, 1837, 



246. 

 Plants, Dr. Lindley on the elementary or- 

 gans, circulation, structure of the axig, 

 cause of the formation of wood, arrange- 

 ment of leaves, structure of leaves, an- 

 ther, &c., origin of the pollen, fertilization, 

 origin of organs, morphology, gradual de- 

 velopment, irritability, action of coloured 

 F 2 



