130 



INDEX II. 



gambogiates, and their use in artistic 

 painting, 51. 



Scotland, on the scratched and polished 

 rocks of, 66. 



Screw-propeller, on the, 110. 



Sea-sickness, and a new remedy for its 

 prevention, 75. 



Seas, on a method of sounding in deep, 22. 



Shark of the red crag, on the great, 54. 



Sheppey, on the remains of a gigantic bird 

 from the London clay of, 55. 



Ships, on mooring, in revolving gales, 36. 



Sliding- rule for hygrometrical calcula- 

 tions, description of a, 42. 



Smith (Dr. R. Angus) on sulphuric acid 

 in the air and water of towns, 52. 



Smyth (Prof P.) on a simple method of 

 applying the power of wind to a pump, 

 for the purpose of irrigation, as put into 

 practice at the Cape of Good Hope, 1 18. 



Snow-storm, notice of a, at St. Ives, 41. 



Sound, on the velocity of, in liquid and 

 solid bodies of limited dimensions, 4. 



Sol, explication d'un tableau de 1 etude 

 m^thodique du, 68. 



Specula of silver for reflecting telescopes, 

 on plain, 12 ; on an improved apparatus 

 for casting the, 116. 



Spheroidal state, on the cause which 

 maintains bodies in the, beyond the 

 sphere of physico-chemical activity, 44. 



Sponge-like animal, on a new form of, 80. 



Statistics, 98; of the attendance in schools 

 for children of the poorer classes, 99; 

 of the armies in the East India Com- 

 pany's service, on the vital, ib. ; maps 

 illustrating the criminal, of England for 

 16 years, 100. 



Steam-fan, on a direct action, for the more 

 perfect ventilation of coal-mines, 116. 



Steam, on the action of super-heated, upon 

 organic bodies, 51 ; on a method of 

 condensing, in marine engines, 116. 



Stevens (Mr.), letter to, by M. KhanikofF, 

 on his ascent of Mount Ararat, 88. 



St. Helena, on some indications of the 

 molluscous fauna of, 76. 



St. Ives, Hunts, aurora borealis seen at, 

 41 ; notice of a snow-storm at, ib. ; on 

 a lunar rainbow, seen Aug. 23, 1850, 

 near, ib. 



Stokes (Capt. J. L.), survey of the southern 

 part of the middle island of New Zea- 

 land, 97. 



Stokes (Prof. G. G.) on a new elliptic 

 analyser, 14. 



Storms, observations on, 34 ; law of, 36. 



Strachey (John) on the inhabitants of 

 Kumaou and Garliwal, 94. 



Strachey (Captain) on the geology of a 



part of the Himalaya and Thibet, 69 ; 

 on the botanical geography of part of 

 the Himalaya and Thibet, 72 ; on the 

 geography of Kumdon and Garhwal in 

 the Himalaya mountains, 92. 



Suffolk, on some tubular cavities in the 

 coralline crag at Sudbourne and Ged- 

 grave in, 70. 



Sunbeams, on some of the appearances 

 which are peculiar to, 35. 



Sykes (Colonel) on the meteorology of 

 Futtegurh, 40. 



Tchihatcheff'( Pierre de), notice of travels 

 in Asia Minor, 95. 



Telescopes, on procuring plain specula of 

 silver for reflecting, 12 ; on an improved 

 apparatus for casting the specula of re- 

 flecting, 116. 



Terre, explication d'un tableau de I'etude 

 methodique de la, 68. 



Testacean, on a new, 77 



Thermo-electricity, experiments on, with 

 the monothermic pile, 1 8. 



Thibet, on the geology of a part of, 69 ; on 

 the botanical geography of, 72, 73. 



Thomson (James) on an improved modi- 

 flcation of the reservoir for gold pens, 

 118. 



Thomson (Dr. Thomas) on the botanical 

 geography of western Thibet, 73. 



Thomson (Dr. T. R. Heywood) on some 

 aboriginal tribes of New Holland, 95. 



Thornton (E.), ascent of Orizaba in 

 Mexico, 98. 



Tides, on our ignorance of the, 27. 



Tilt (Dr. E. J.) on the best means of as- 

 certaining the number and condition of 

 the infantile idiots in the United King- 

 dom, 109. 



Townsend (Mr.), notes on the Australians, 

 95. 



Twining (Hervey) on some of the appear- 

 ances which are peculiar to sunbeams, 

 35. 



Tyndall (Dr.) on diamagnetism and mag- 

 necrystallic action, 15 ; experiment in 

 thermo-electricity with the monother- 

 mic pile invented by Prof. Magnus of 

 Berlin, 18; on air-bubbles formed in 

 water, 26. 



United Kingdom, on the prospects of the 

 beet-sugar manufacture in the, 101. 



Vitality and mind with the physical forces, 



on the correlation of, 83, 

 Volcanic group of Milo, on the, 89. 



Walcnn (W. H.) on the construction and 



