INDEX II. 



125 



Plymouth, statistics of, 98. 



Polarization, circular, apparatus for applying 

 to chemical inquiries, 32. 



Port Essington, specimen of Machaerium sub- 

 ducens from, 69. 



Porter (H. J.) on the monts de piete in Ire- 

 land, 98. 



, on loan funds in Ireland, 98. 



Potassium, palladio-chlorides of, dichroism of 

 the, 13. 



, formation of cyanuret of, in a blast fur- 

 nace, 34. 



Powell (Prof.) on certain cases of elliptically- 

 polarized light, 13. 



— — — , on apparatus for applying circular po- 

 larization to chemical inquiries, 32. 



, contributions to academical statistics, 



continued from 1839, 100. 



Prichard (John), meteorological register for 

 1841-42, from diurnal observations kept 

 at Beddgelert, in the county of Carnarvon, 

 25. 



Property, increase of, in South Lancashire, 

 since the revolution, 94. 



Puberty, period of, in negro women, 82. 



Purpura lapillus, nidus and growth of the, 66. 



Rails, best form of, 1 06. 



Railways, best form of upper works of, 106. 



Reade (Rev. J. B.) on Liebig's theory offal- 

 low crops, 64. 



Reflexion, crystallized, 13. 



Registers of the collegiate church of Manches- 

 ter, on the, 92. 



Richardson (Mr.) on the history of the mag- 

 nesian limestone, 37. 



Richardson (Dr.) on a specimen of Machae- 

 rium subducens from Port Essington, New 

 Holland, 69. 



— -, on the case of a diver employed on the 

 wreck of the Royal George, who was in- 

 jured by the bursting of the air-pipe of the 

 diving apparatus, 84. 



Roberton (John) on the period of puberty in 

 negro women, 82. 



Robison (Sir J.) on a new optical instrument, 

 27. 



, on M.Prosser's method of making earth- 

 enware or porcelain from dry powder of clay 

 compressed, 114. 



Rocks, distinction between the striated sur- 

 face of, and parallel undulations dependent 

 on original structure, 53. 



Rogers (Profs. H. D. and W. B.) on the phy- 

 sical structure of the Appalachian chain, as 

 exemplifying the laws which have regulated 

 the elevation of great mountain chains gene- 

 rally, 40. 



Rook (Mr.) on the tidal phaenomena in the 

 bay of Fundy and the river de la Plata, 22. 



Royal George, injury of a diver employed on 

 the wreck of the, by the bursting of the air- 

 pipe of the diving apparatus, 84. 



Royle (Dr.) on the different species of cotton 

 plants, and of the culture of cotton in In- 

 dia, 61. 



Russell (J. S.) on waves, 19. 



, on an indicator of speed of steam ves- 

 sels, 109. 



on the abnormal tides of the Firth of 



Forth, 115. 



Russia, geological structure of, 45. 



Sabine (Colonel), letter to, from Professor 

 Wheatstone, on a new meteorological in- 

 strument, 9. 



Sana Island, species obtained by deep dred- 

 ging near, 70. 



Sandstone, new red, occurrence of vegetable 

 remains, supposed to be marine, in the, 47. 



Sand storms, production of, 42. 



Schbnbe'in (Prof.) on the electrolysing power 

 of a simple voltaic circle, 30. 



, on a peculiar condition of iron, 40. 



School, industrial and training, to be erected 

 near Manchester, 96. 



Schoolcraft (Rev. Mr.) on the production of 

 sand storms and lacustrine beds, by causes 

 associated with the north American lakes, 

 42. 



Schwabe (L.) on spinning glass, 114. 



Scoresby (Rev. W.) on improved magnets, 

 and the different modes of examining then- 

 powers, 19. 



Scotland, destitution and mortality of some of 

 the great towns of, 97. 



Shaw (Alexander) on some peculiarities in 

 the circulation of the liver, 79. 



Shaw (Sir Charles) on the criminal statistics 

 of Manchester, 92. 



Shaw (Mr.) on a new steam engine worked 

 with three kinds of pressure, 111. 



Shuttleworth (Mr.) on the vital statistics of 

 the spinners and piecers employed in the 

 fine cotton mills of Manchester, 93. 



Sluice, on a self-acting scouring, 110. 



Smith (J.) on a new steam boiler, 115. 



Smoke, on preventing the generation of, 107. 

 , on consuming, 108. 



, plans for abating the nuisances from, 



by effecting a more perfect combustion, 108. 



Soil, surface, on ascertaining the minute por- 

 tions of matter derived from organic sources 

 that may be preserved in the, 37. 



Solar spectrum, structure of a part of the, 

 hitherto unexamined, 15. 



Spade husbandry, advantages arising from, 

 99. 



Spectra, luminous bands in the, of various 

 flames, 15. 



Spectrum, new property of the rays of the, 12. 



Spiders, palpi of, 66. 



, species of ichneumon whose larva is 



parasitic on, 68. 



Spinners and piecers, vital statistics of the, 

 employed in the fine cotton mills of Man- 

 chester, 93. 



Stark (James) on the structure and mode of 

 formation of glaciers, 58. 



Statistics, 87. 



, vital, of Manchester, 87. 



— — , criminal, of Manchester, 92. 



