38 INDEX. 



Campbell (Mr.), observations of, on the theory of vision, iii. 374 



Camphor, on the rotation of pieces of, viii. 383 



Canals of Britain and France, comparison of, xiv. 220, 221. Im- 

 provement in canal navigation, 431 



Cancer, employment of iodine for the relief of, xiv. 237 



Cancerous tumour, extraordinary operation for, described, vi. 

 47-50 



Candolle (M. de.), on the origin of the ergots or clavus, in corn, 

 ii. 272. Proof that it is a species of sclerotium, 273 



Canoe, ancient found in Lincolnshire, i. 244, 245 



Cantharadin found in the potato-fly, x. 457 



Canton (Mr.), hypothesis of, to account for magnetic variations, 

 vi. 97, 98 



Caoutchouc, a preserver of steel goods, xiii. 424. Notice of 

 Caoutchouc bottles, 430 



Cape of Good Hope, appearance of, ii. 210 



■ vines of, ravaged by insects, x. 64. Salt re- 

 commended as a preventive, 65 



account of some parhelia seen at, xvi. 365, 



366 ; and of a remarkable grotto in the interior of that coun- 

 try, 272 

 remarks on the wines Of, xviii. 134 



Capillaiy attraction, phenomenon of, explained, i. 94. Investi- 

 gation of its theory, 290 



■ — tubes, experiments on the escape of gases through, iii. 

 354, 355 



action of fissures, Sec, remarks on, xvii. 151, 152 



■ attraction, experiment on, xix. 134 



Capuchin Missions of the Caroni, Journal of an excursion to^ 

 from St. Thome de Angostura, in Spanish Guayana, viii. 260. 

 Notice of the village of Panapana, 261. Arrival at the farm-? 

 house of San Felipe, 253. Hospitable reception there, 264. 



. Arrival at the missionary station of Carnache, ibid. Descrip- 

 tion of it, 265. And of the missionary station of San Antonio, 

 26Qt 267. Arrival at Upata, the capital of these missions, 268. 

 Description of it, 269, 270. State of the plantations in its 

 vicinity, 271. Industry of a planter at Tarife, 272. Plan of 



