435 



W. 



Warington, Professor, work of, 322. 

 Water, baobab trees for storing, 169^ 



— in trees, ascent of, 409. 

 — , method of softening, 2.52. 

 — , natural purification of, .348. 

 Water melon seed, oil from, 316. 

 Watson, Rev. N. B., 3.55. 



AVatts, Dr. F., 7, 45, 77, 93, 197, 221, 

 253, 307, 331, 349, 3t^3, 399, 412. 



Waxes, Mexican vegetable, 104. 



Weeds, carbon bisulphide for killing, 265. 



— , Tephrosia purpurea for killing, 

 281. 



— , uses of, 165. 



AVeil, V. M., 77. 



West Africa, cotton in, 358. 



— — , cotton seed importation into, 

 397. 



— — , yellow fever in, 396. 



West African cofi^ees, comparative values 

 of, 248. 



— — cotton purchases, 102. 



West Indian Agricultural Conference, 

 1911, 216. 



West Indian cotton on Liverpool market, 

 6, 22, 38, 54, 70, 86, 102, 118, 134, 

 150, 166, 182, 198, 214, 230, 246, 

 262, 278, 294, 310, 326, -342, 358, 

 374, 390, 406. 



West Indian cotton prices, 1909-10, 278. 



— — products on the London 

 market, 15, 47, 76, 111, 143, 191, 

 207, 239, 287, 319 367, 383. 



West Indian sugar-cane seedlings in 



Queensland, 72. 

 West Indies and Canadian exhibitions, 



1910, 343. 



— — , cotton exports from, 118, 

 198, 278, 294. 



West Indies in Canada, 1910, 265, 

 West Indies, insect pests in, 1910, 410. 



— — , trade with Canada, 29, 69. 

 Wet lands, green manures for, 325. 

 White ants, reward for destruction, 92. 



— — , use of Euphorbia latex against, 

 41. 



White iron-bark, see Eucalytus paniculata 

 White mahogany, see Eucalytus acmen- 



oides. 

 WhooUybutt, see Eucalyptus longifolia. 

 Wild Ipecacuanha, see Asclepias curassa- 



vica. 



— lucerne, see Melilotus alba. 



— olive, see Bontia daphnoides. 

 Willughbeia firma rubber, tackiness in, 



89. 

 Wind, resistance of Para rubber trees to, 



271. 

 Winnipeg, International Exhibition, 396. 

 Winogradsky, work of, 323. 

 Wire-worms (Elateridae), 138. 

 Witches' broom of cacao, development of, 



57. 

 Wolstenholme, C. M., 6, 22, 38, 54, 70, 



86, 102, 118, 134, 150, 166, 182, 198, 



214, 230, 246, 262, 278, 294, 310, 



326, 342, 358, 374, 390, 406. 

 Wood preserving, Powell process for, 



201. 



Woollen manufacture, cotton seed oil, 



and, 25. 

 World's supply of cotton, 371. 



X. 



Xylinabaria Keynaudi rubber, tackiness 

 in, 89. 



Yellow fever in West Africa, 396. 

 Yield of cocoa-nuts, 21. 



— — sugar-cane and distances of 

 planting, 371. 



— from cacao trees, 148. 



— — Ceara trees in Uganda, 271. 



— _ — — — with different 

 kinds of tapping, 151. 



z. 



Zalophothrix mirum, 170. 

 Zoosporangium, definition of, 110. 

 Zoospore, definition of, 94. 

 Zygomycetes, description of, 110. 



