443 



Plant Disoa-ses (Continued): — 

 Rosellinia Pepo, 382. 

 — root diseases in the Lesser 



Antillts, 382. 

 Kot of Hevea stems, 318. 

 Septobasidium pedicellatum, 110. 

 Sphaerostilbe coccophila, 110 

 Sporotricliuiii glnbulifermii, 43(i. 

 Spotting; ot oranges, 61. 

 Sprayintr with Burgund.y mixture, 30. 

 Stem disease of sugar-cane in Barl'ados, 



14 

 Thielaviop.sis p;iradoxa, 174. 

 Tricboderma lianorum, 174. 

 U.>ti]ago sbiraiana, 46. 

 I'etulicia zonata, 318. 

 Wilt disease of sugar-cane: a correction, 



46. 

 Plant distribution in the Virgin Islands, 



^•5- ... I 



— growth and electricity, 413. i 



— — , ettects of sodium salts on, 364. 



— importations into St. Lucia, restric- 

 tions on, 341. 



— inheritance of mile characters only, 

 155. 



— , propagation instructions, 302. 

 Plantation rubber, rise in, 411. 



— , vulcanizability of, 415. 

 Plant.s, alkaloid formation in, 412. 

 — , carbohydrates in, formation and 



translocation of, 188. 

 — , endemic, 108. 

 — . growing under cLfese-cloth, 3(). 

 — , immobility of iron in. 396 



— indigo-yielding substances in, 44. 

 — , microfcopic parasit;es of, 3i>4. 



— , natural colour in. preservation of, 

 409. 



— that i-tupefy fish, 270. 

 — , water losses from, 94- 



Plymouth Rock fowls in the Virgin 



Lslands, 159. 

 Poi.sonous jia'ure ?! ihlonite as a manure, 



189. 



— principle of cotton seed, 25. 

 Pollard, ■■niiipo-iiuon of, 252. 

 Pomelo ( 1,'itrus d'KurrKina), 250. 

 Population of .Jamaica, 12. 

 Pork invfstig ition.", 169. 



- — , salting iu S: Vincent, l-"i9. 

 Portland cement ■ oncret.;, oil mixed, 60 

 Porto Rico, Cane breeding and selection 

 in, 275. 



— — , cover crops used in, 181. 



— — , sugar crop in, 389. 



— — , n?e of turmeric in, 364. 

 Possibilities of Cuba's sugar production, 



40 

 Pota.sb, banana stalks and skins a source 



of, 332. 

 . — compounds from seaweed, 1S5. 



— contained in tobacco ash, 252. 



— industry, 1''^. S. A., developments of, 

 26 1 



Potassium cyanamide, action of on plant 

 ti.ssues, 284 



— salts, large deposits in Alsace, 140. 



Practical agriculture, presentation of 



certificates, 66. 

 Preparation of commercial papain, 358. 

 Preservation of meat, 55. 

 Preserved mangoes, 20. 

 Pressure in soils, 200. 

 Price of Hour, 372. 



Prize-hipldings competition, Grenada, 299 

 Production of rain, artificial, 75. 

 Propagation recipes, 250. 

 Prosopis julitlora (algaroba), 123. 

 Prussie acid content of sorghum, 253. 

 Publications, new local, 57. 

 — of the Imperial Department of 



Agriculture, 393. 



Q 



Quarantine, and introduction of new 

 varieties of sugar-can^ into the United 

 States, 263. 



Quebrachia Lorentzii (Quebracho color- 

 ado), 286, 421 



Quebracho Colorado ((Juebrachia Lorent- 

 zii), 286. 421. 



Queensland, Bureau of Sugar Experiment 

 Stations, report, 1915, 98. 



— , co-operative sugar w^jrks in, 40. 



— , cotton growing in, 236 



— , proposed land settlements in, 24 



— , reafforestation in, 186. 



— , sugarcane in, 371. 



— , sugar crop for 1916, 188- 



Quiscalus luminosus (Black bird or 

 'Bequia Sweet), 218. 



R. 



Eadiuui as a Icrtilizer, 172. 

 Rain, artificial production of, 75. 

 Rainfall, heavy in the AVest Indies, 387. 



— — , soil ero.sion due to, 105. 



— iu I lominica, 1915, 120. 

 Rape, pasturing pigs on, 125. 

 Rat?, 90. 



Reafforestation in Antigua, 123. 



— — ( ^)ueeiisland, 186. 

 Recipes, propagation, 250. 

 Eeciprocity with I'anada, 73. 

 Republic, Central American, an efficient, 



57. 

 Researoh, scientific and industrial, 88, 

 Revenue of l>orainica, 407 

 Rhiz )phora Mangle, 381. 

 Rhodes scholarship scheme and the West 



Indies, 42s 

 Rhodesia, crop experiments in, 383 

 — , development of, 378 

 Rice bean (P/i/'iiiiolus ndmratus), 101. 



— culture in California, 60. 

 — , milling of, 172. 



— planting operations in Trinidad, 235. 

 Rock, solubility of in pure water, 78. 

 Boot sy.stems and leaf-areas of corn and 



the sorghums, 394. 



Roots, live and dead, absorption power of, 

 76. 



Rosellade, 254. 



Roselle or sorrel (Hibiscus s.ibdarifa), 

 108 



Rosha grass (Ci/mbopogon Mnrtini) 

 economic uses of, 316. 



Rough lemon (Citrus limonum), 251. 



Royal Botanic Gardens, Kew, new flag- 

 staff for, 124 



— Colonial Institute year-book, 1915, 

 163 



Rabber, adulteration of, 348 



— , Castilloa different species of, 268. 



— — , Mexican methods of tapping, 

 283. 



— • crop and rainfall, relation between, 

 44 



— cultivation in Burma, development 

 of, 380 



— — — the Seychelles, 428. 



— , exportation from Belgian Congo 



prohibited, 28. 

 — , exports from the Federated Malay 



States, 92 

 — , (Hevea brasiliensis), physiolusical 



effects produced by tapping, 13, 30. 

 — , history of, 292. 

 — , new invention in, 8. 

 — , — results in the investigation ';>f, 



415 

 — , plantation, rise in, 411 



— — , vulcanizability of, 415. 



— production in 1915, 188. 



— , — — Malaya and Sumatra, 



28. 

 — , shock absorber, 8. 



— stratagems of the blockade, 333. 



— , synthetic, manufacture of in Ger- 

 many, 316. 

 — ., vulcanization wiiliout .sulphur, 396. 



Sabal Adamsonii. 235, 



— palmetto, 235. 



Sailors and soldiers, land settlement for, 



157. 

 St Kitts, cotton uianurial experimc:^^ m, 



86. 



— — , donkeys in, 159 



— — . horses in, 159. 



— — , items of local interest, 39, 77, 

 103, 133, 164, 212 244, 276, .SOB, 

 347, 382 420 



— — , milk in, fixed standard of purity 

 for, 264 



— - , Sale of Food and Drags i.Xrdin- 

 ance 76. 



— — , sugar-cane prospects in, 339 



— — ., weather conditions in, 339, 355 



— — . Vv'est Indian cotton conferen:;e 

 in, 72. 



St. Kitts-Nevis, hurricane at, 355. 



