425 



O. 



Ocotea pretiosa, 3 45. 



Oil, Cyprus Origanum, 151. 



— from Para rubber seeds, 252. 



— ill ground nuts, 316. 



Oil palm products, exports from South- 

 ern Nigeria, 135. 



— — — , report on, 395. 



Oils and oil seeds at the Imperial Insti- 

 tute, 395. 



Onderneeming School, 376. 



Onion industry of the Leeward Islands, 

 316. 



Onions, storage of, 191. 



Organisms, nitrogen-fixing, and manures, 

 201. 



Origanum oil, Cyprus, 151. 



Oxidation m soils, 183. 



Paddy seedlings, hints for transporting, 



89. 

 Pairi mango, 116. 

 Palay rubber, 315. 

 Palm oil tree, see Elaeis guineensis. 

 Palmyra palm, see Borassus flabellifer. 

 Panama, sugar industry of, 268. 

 Pao pretiosa, see Ocotea pretiosa. 

 Paper-making, materials for, 299. 

 Papua, Animal Introduction Ordinance, 



364. 

 Para rubber cultivation, Cotfea robusta in, 



132. 

 — -, — exports from, 1 56. 



— — from Dominica, 31. 

 — , — industry in, 267. 



— — in the Congo, 220. 



— — planting in St, Lucia, 412. 

 — > — seeds, oil from, 89, 252. 

 Paraguay tea, 7. 



Paris green poisoning, treatment for, 3G1. 

 Parthenium argentatum, 229. 

 Pear, avocado, 180. 

 Peat for shipping pineapples, 60. 

 Pedilanthus sp., 203. 

 Pellagra, investigation of, 399. 

 — , Italian Commission on, 12. 

 Pen manure, preservation of, 333. 

 Perennial rice, 260 

 Peripatus, 186. 



Permanent Exhibitions Committee, Brit- 

 ish Guiana, leaflets issued by, 92. 

 Peru, cocaine production in, 407 

 — , cotton exports from, 60. 

 — , cotton-growing in, 230. 

 Pest Laws in Porto Rico, 362. 

 Fetch, T., 190. 

 Phaseolus Mungo, 219. 



— trinervis, 277. 



Philippine Islands, agriculture in, 319. 



— — , sugar industry in, 412. 

 Philodendron sp., 23 1. 



Phosphates in the soil, and bacteria, 201. 

 Phytelephas macrocarpa,316. 

 Pickford, C. S., 129. 

 Pimento on the London market, 15, 47, 



79, 95, 143, 175, 2.39, 25.5, 287, 319, 



351, 383. 

 Pineapple exportation from Natal, 335. 



— exports from the Azores, 412. 



— growing on manganese soils, 276. 

 Pine apples, insects on, 142. 



— , shipped in peat, 60. 



Plague and the Manchurian soy bean 

 trade, 213. 



Plant areas, definite, reasons for exis- 

 tence, 194. 



Plant diseases: — 



Areca palm disease, Phytophthora 



omnivora, var. Arecae, 206 

 Arrowroot disease, 174, 414. 

 Banana disease in Costa Rica-, 110. 

 _ _ _ Cuba, 110. 



— — — Panama, 110. 



— — — Surinam, 110. 



— — — Trinidad, 110. 



— diseases, 414 



— root disease, ^larasmius seiniustus, 

 110. 



Bananas, Moko disease of, 113, 254. 

 — , Panama disease of, 110, 254. 

 Base rot of pine-apple cuttings, Thiela- 



viopsis paradoxa, 142, 

 Bengal bean leaf spot, Cercospora sp., 



190, 415. 

 Bigge foote of bananas, 110. 

 Black root disease, 366. 

 Black rot of citrus fruits, Diplodia 



natal ensis, 318. 

 Botryodiplodia elasticae in British 



Guiana, 61. 

 Bud-rot of palms in India, 30. 

 Cacao brown root disease, Ceylon, 



Hymenochaete noxia, 197. 

 Cacao diseases, 414. 

 Cacao pod rot, Phytophthora Faberi, 



78, 197. 

 Cacao root disease, 79. 

 Castanea disease, Diaporthe parasitica, 



114. 

 Castilloa root disease, Grenada, 222. 

 Cercospora sp., Bengal bean leaf spot, 



190, 415. 

 Ceylon coffee disease, Hemileia vasta- 



trix, 133. 

 Citrus plant diseases, 414. 



— scab, Cladosporium citri, 46. 



— wither-tip fungus, Colletotrichum 

 gloeosporioides, 46, 62, 415 



Cladosporium citri, citrus scab, 46. 



— herbarum, 46. 

 Cocoa-nut bud rot, 350. 



— — — in Jamaica, 8, 60. 

 Coffee disease, Hemileia vastatrix, 68. 

 Colletotrichum gloeosporioides, citrus 



wither-tip, 46, 62, 415. 

 Corticium javanicum, pink disease, 



133. 

 Cystopus Ipomoeae-panduratae, sweet 



potato white rust, 222, 415. 



Plant diseases {Continued) : — 



Diaporthe parasitica, Castanea disease, 



114. 

 Die-back of citrus tree.s, 33. 

 — ■ fungus, Lasiodiplodia theobromae, 



286. 

 Diulodia natalensis, black rot of citrus 



fruits, 318. 

 Elephantiasis of bananas, 110. 

 Euonymus japonica, disease of, 332. 

 Eutypa erumpens, 318. 

 Fomes australis, 270. 



— lucidus, 190, 270, 383. 



— semitostus, 270. 

 Gloeosporium alborubrum, 286. 

 Guinea corn rust, Puccinia purpurea, 



190, 41.5. 

 Hemileia vastatrix, Ceylon coffee 



disease, 68, 133. 

 Hormodendron sp., scaly bark of 



citrus trees, 46. 

 Hymenochaete noxia, cacao brown 



root disease, Ceylon, 197. 

 Lasiodiplodia theobromae, die-back 



fungus, 286. 



— — , identity of, 78. 

 Lime red root disease, 382. 



— stem canker disease, 382. 

 Limes, miscellaneous fungi on, 190. 

 Mango die-back, 415. 



— fruit .spot, 190, 415. 

 Marasmius semiustus, banana root 



disease, 110. 

 Miscellaneous fungi, 190. 

 Moko disease of bananas, 110, 254. 

 Palm diseases, 14, 206, 414. 

 Palms, bud rot of, in India, Pythium 



palmivorum, 14. 

 Palmyra palm bud rot, Pythium 



palmivorum, 206. 

 Panama disease of bananas, 110, 254. 

 Phytophthora Faberi, cacao pod rot, 73^"" 



197. 



— omnivora, var. Arecae, areca palm 

 disea.se, 206. 



Pineapple black heart, 158. 



— brown rot, 158. 



— core rot, 158. 



^ disease, Thielaviopsis ethaceticus, 

 126. 



— diseases, 414. 



— fruit rot Thielaviop.sis paradoxa, 

 142. 



— : leaf spot, Thielaviopsis paradoxa, 

 143. 



— ripe rot, 158 



— roots, pests and diseases of, 159. 



— sun scald, 158. 



— tangle root, 159. 



— wilt, 158. 



Pink disease, Corticium javanicum, 



133. 

 Polystictus hirsutus on limes, 190. 

 Poria hypolateritia, 270. 

 Pseudomonas vascularum, .sugar-cane 



guiiiraosis, 238. 

 Puccinia purpurea, Guinea corn rust, 



190, 41.5. 



