SECTIONS.— INDEX OF AUTHORS. 



m 



Pnipps (Dr. J.) on the sailing powers of 



two yachts, built on the wave principle, 



1846, 112. 

 *Phipps (J. P.) on the application of the 



wave system of Mr. Scott Eussell to the 



construction of sailing vessels, 1847, 



132. 

 Phipson (Dr. T. L.) on some new cases of 



phosphorescence by heat, 1859, 76. 

 — — on the composition of the shell of Car- 



dium edule, 1859, 77. 



on the composition of a recently- 

 formed rock on the coast of Flanders, 

 1859, 77. 



PiCKELLs(Dr.), eulogium on the lateKichard 

 Kirwan, LL.D., 1843, 39. 



on the deleterious effects of CEnanthe 



crocata, 1843, 81. 



*PiERCE (Prof. B.) on the physical consti- 

 tution of comets, 1860, 37. 



* on the dynamic condition of Saturn's 



rings, 1860, 37. 



*—— on the motion of a pendulum in a 

 vertical plane when the point of suspen- 

 sion moves uniformly on a circumference 

 in the same plane, 1860, 37. 



Plant (J.) on the discovery of beds of Keu- 

 per sandstone containing zoophytes in the 

 vicinity of Leicester, 1849, 64. 



Player (Mr.) on the application of an- 

 thracite coal at the Gwendraeth Iron- 

 works, 1839, 130. 



Playfair (Dr. Lyon), statement of Prof. 

 Liebig's views on poisons, 1840, 72. 



on a new fat-acid, 1840, 76. 



, Prof. Liebig's letter to, on some inter- 

 esting results obtained in his laboratory, 

 1841, 53. 



on some new oxides of certain of the 



metals of the magnesian family, 1842, 



35- 



on the composition and characters of 



caryophyllin, 1842, 36. 



* on atomic volumes, 1845, 31. 



on the expansion of salts, 1846, 49. 



•* on decompositions produced by cata- 

 lytic bodies, and on the molecular con- 

 stitution of salts, 1847, 57. 



-. on the condensation of volume in 



highly hydrated minerals, 1850, 60. 



, address as President of the Chemical 



Section, 1859, 65. 



on a symmetrical arrangement of 



oxides and salts on a common type, 1859, 

 259. 



* on the representation of neutral salts, 



&e., 1860, 71. 

 Plucker (Prof.) on experiments belonging 



to a new magnetic action, 1848, 2. 



• on magnetism, 1853, 7. 



PoEY (Sen or A.), hurricanes in the West 



Indies and the North Atlantic, 1855, 



.150. 

 PoGSON (N.), discovery of the asteroid No.46, 



1857, 31. 

 ' on the ocular crystal micrometer. 



with observations of twelve double stars, 



1858, 19. 



PoGSON (N.) on a new variable star (E, 

 Sagittarii), discovered with the five-foot 

 Smy thian telescope of the Hartwell House 

 Observatory, 1858, 29. 



on an improvement in the heliometer, 



1859, 36. 



on three variable stars, R and S 



TJrsee Majoris, and U Geminorum, as ob- 

 served consecutively for six years, 1859, 

 36. 



Ponton (M.) on certain laws of chromatic 

 dispersion, 1859, 15. 



on the law of the wave-lengths cor- 

 responding to certain points in the solar 

 spectrum, 1859, 20. 



on the laws of chromatic dispersion, 



1860, 16. 



Poole (H.) on the meteorology of the 

 Albion Mines, Nova Scotia, 1854, 35. 



on a geological survey of the region 



between Constantinople and Proussa, in 

 Asia Minor, in search of coal, 1855, 

 94. 



, observations with the aneroid metal- 

 lique and thermometer, during a tour 

 through Palestine and along the shores of 

 the Dead Sea, 1856, 41. 



PooLEY (C.) on engraving collodion photo- 

 graphs by means of fluoric acid gas, 1856, 

 58. 



Popham (J.) on the treatment of gangrene 

 of the lungs by chloride of lime, 1843, 82. 



, statistical returns of the North Cork 



Infirmary during a period of five years^ 



1843, 84. 



PoRRO (M.), portable apparatus for analy- 

 sing light, 1859, 62. 



Porter (G. R.) on the price of wheat, and 

 its influence on popidation in England, 

 1836, 133. 



on the trade between the United 



Kingdom and the United States, 1837, 

 136. 



on the progress of mining industry in 



France, 1838, 174. 



on the systematic collection of the 



statistics of agriculture, 1839, 116. 



on the mining industry of France, 



1844, 86. 



on the progress of savings' banks in 



the United Kingdom, 1845, 87. 



on the iron trade, 1845, 91. 



on the influence of education, shown 



by facts recorded for 1845 and 1846, in 



the Criminal Tables, 1847, 109. 

 on a comparative statement of prices 



and wages (during the years from 1842- 



49), 1849, loi. 

 on the agricultural statistics of Ireland, 



1849, 104. 

 • on the productive industry of Paris, 



1852, 119. 

 Porter (H. J.) on pawnbroking in Ireland, 



1840, 181. 



