212 INDEX. 



Watt (Mr.), notice of his important discoveries in the powers and 

 properties of steam, xi. 343 



— — contrivance of, for consuming smoke, xii. 349 



Watts's (Mr.), remarks on Captain Kater's experiments for de- 

 termining the length of the second's pendulum, viii. 239 



Waves, hydraulic experiments on the propagation of, xvi. 370 



Wavellite, analysis of, viii. 351 



Wax (virgin), analysis of, xv. 384 



Weather, journal of the state of, at Sierra Leone, from May to 

 December, IS 12, vi. 301 



Weaver (Thomas, Esq.), description by, of the fossil elk of 

 Ireland, xix. 269 



Weaving, improvement on the salubrity of, xii. 332 



Webb (Capt.), experiments of, to determine the height of the 

 Himalaya mountains, vi. 51 



memoir of the services and proceedings of, vii. 30 



journey of, in Thibet, ix. 61. Legend of Kcddr-nat'h, a 



. reputed holy place among the Hindus, 62. Instances of re- 

 ligious suicide there, 63 ; affected by the bis ki huwa, or 

 poisonous air, 65. Approaches the frontiers of Chinese Tar- 

 tary in the garb of a trader, 66. Account of his mercantile 

 adventure, 67. Notice of the town of Daba, 69. Barometrical 

 observations, ib. 



Wedge, observations on the theory of the, xix. 234 



Wedgwood (Thos., Esq.), on the origin of our notion of dis- 

 tance, iii. 1. Outline of Bishop Berkeley's theory, 2. How 

 far the sense of touch communicates notions of distance and 

 magnitude considered, 3. Perception and idea have one com- 

 mon nature, 6. Illustration of this law, 7 



Weeds, growth of, successfully prevented or destroyed by the use 



of salt, X. 70 

 Weekly Memorials for the Ingenious^ bibliographical notice of, 



xiii. 38 

 Weighing machines, temporary contrivance for, xviii. 164 

 Weight exists in all matter, xi. SO 

 Weights and measures, difficulty of obtaining a standard for, iv. 147 



