428 



Scirpus lacustris, (tule plant), 127. 

 tSea egg {Hipjtoaoe esculoUa), 311- 

 Sea eggs as food, 341. 

 •Sea Island cotton, area under cultivation 

 in Barbados, 39. 



— — — market, 6, 22, 38, 54, 86, 

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

 246, 340. 390, 414. 



Sea-weed as a manure, comparative value 

 of, 140. 



— — substitute for cotton, 216. 

 Sea-weeds, potash obtained from, 300. 

 Sedum spectabile, 117. 



»Seed, Para rubber, comnien-ial possi- 

 bilities of, 229. 



— , pedigreed, 19-5. 



Seeds, new, breeding, 335. 



Selaginella lepidophylla, 117. 

 -Setaria italica (Italian millet), 397- 



Shortage of meal, 15. 



Shrubs, perennial forage, 217. 



' Shushumber ' {Solamim mammosum), 

 267. 



Sida accuminata, 228. 



Siguana (Ameiva e.vu/), 107. 



Silk-cotton {Eriodtndro)! anfraettiosiun), 

 207, 383. 



Simaruba amara, 74. 



— versicolor, 74. 



Sisal (Ayave sisalaiia), 153, 204. 



— cultivation in Antigua, 153. 

 _ _ _ East Africa, 238. 



— hemp (Agave sisalana), 8. 

 Skins, fish, demand for, 59. 



— , — , tanning of, 168. 



Soil grubs and pigs, 328. 



— , humus content of, as guide to 

 fertility, (^3. 



— , nitrogen-fixing organisms of, stimu- 

 lating inflacnce of arsenic upon, 24. 

 • Soils, tropical, lt7. 



Solanum igneum (canker berry), 187. 



— mammosum ('shushumber'), 267. 



— melongena (egg-plant or melungone), 

 187, 267, 314. 



— aeaforthianum, 187. 



— torvum (' bellangere batarde') 41, 

 267, 314. 



Soldiers, discharged, farming in Australia 



for, 147. 

 Sorghum halepense (.Tohnson grass), 186, 



392, 396. 

 . — tests in <,,>'.:een8laud, 63. 

 ■.Sorghums in (.Queensland, 147. 

 Souari or butter-nut tree {Caryocar 



lotnenluswn), 347. 

 Source of thymol, a possible new, 117. 

 Sources of supply for various .sugars, 



116. 

 South Africa, buchu cultivation in, 312. 

 — , cotton production in, prospects 

 —of, 198. 



— — , farming in, 281. 



— — , grape culture in, 231. 



— — , new products from, 249. 



Southern California, green manure cri>ps 

 in, 344. 



— Philippines, development of, 127. 

 Spanish Astragalu.s {Astragalus /^oc/irus), 



191. 



— inHuenza, epidemic of, 361. 

 Sparrow hawk {Falco sparverius loqtia- 



iida), 107. 

 Spartina stricta, 41. 



— Townsendii, 41. 

 Spi'i'gula arcensis, 301. 



Spigelia anthelmia (' worm weed', 'brin- 

 villier', or ' water weed'), 411. 



— raarilandica, 411. 



Spondias dulcis (golden apple). 207. 



— lutea (hog plum), 207. 

 Sponge fishery, Tortola, 143. 

 Sponges, Queensland, 41. 



Spraying e.\-periment on cacao trees, 4. 

 Standards and Sugar, American Bureau 



of, 264. 

 Starch, sweet potato, 104. 

 ' Station Agronomi(iae de la Guadeloupe', 



1S4. 

 Sterculia caribaea ('Mountain John Bull' 



or ' Mahoe Cochon'), 266. 

 Stevea Piebaudiana, 213. 

 Stizolobium aterrimum (Bengal beans;, 



35, 406. 



— niveum, 35. 



Stock, plants poisonous to, 411. 



— , pure-bred, breeding, 25. 



Storing of sweet potatoes and other 



vegetables, 107. 

 Storms, nature of, and signs of approach, 



246. 

 Stoute, Dr. C. P., 196. 

 Substitutes, rubber, 233. 

 Sudan grass, dying out of clumps of, 



184. 

 Sugar and its value as a food, 212, 



259. 



— — the teeth, 291. 



— as a meat preservative, 201. 



— beets, production of in Canada, 220. 

 Sugar-cane, average yield per acre in 



Hawaii in 1917, 167. 

 — , breeding varieties on Mendelian 

 lines, 136. 



— cultivation in St. Croix, experi- 

 ments in, 149. 



— cuttings, .selection of, before plant- 

 ing, 132. 



— experiments in Trinidad 191.5-16, 3. 



— field.s, weeds in, methods of killing, 

 300. 



— , food value of, 324. 



— hybrid, (Sacchariim offlciiuirtim x 

 Saa/iarinn ri/iari), 12. 



— in Co.'^ta Pica, 325. 



— industry, by products of, 88. 



— manurial experiments, Demerara, in 

 1917, 406. 



— mills, .small, 227. j 



— production, a world's record, 412. ! 



Sugar cane, 'selection of cuttings before 



planting, 132. 

 — , studies in inherit<nce in, 196. 

 — . thick 'rysus thin, for planting, 



280. 

 — , Uba, origin of, S3. 



— varieties, identification and des* 

 cription of, 28. 



— wax. possibilities of, 12. 

 Sugar fai'lory, Antigua central, 151. 



— — control, 308. 



— — results in Mauritius, 244. 



— factories, chemical control in, 149. 

 ' Sugar from Several Points of View', 



268. 



— imports and exports, United Statoa, 

 381. 



— indust»y after the war, 212 



— — , Brazilian, 259. 



— — , Cuban, development of, 162, 

 — • — , Guatemalan, 57. 



— — in Florida, resuscitation of, 

 140. 



Sugar industry : — 



Possibility of increased production of 



.sugar in India 244. 

 Review of the working of two West 



Indian sugar factories, 1918, 276, 

 Scientific progress in, 3. 

 Sugar crop of Briti-sh Guiana, 1916-17 



1917-18, 248, 409. 

 Supplies and renewals for sugar plan- 

 tations, 99. 

 The sugar factory as a source of sup- 



I)ly of acetic acid, 116. 

 Use of centrifugal force in the sugar 



factory, 99. 

 Waste products of cane sugar making, 



38, 

 White sugar manufacture in Porto 



Rico, 28. 

 Sugar i)alms, a commercial source of, 

 133. 



— prices, control of, 324. 



— production in Formosa, 300. 



— technology, 380. 



— , use of ill veterinary surgery, 76. 

 Sulphate of ammonia, the world's pro- 

 duction of, 215, 



— — copper, the world's production 

 of, 215. 



Sulphur, the world's production of, 



21,5. 

 Sun -flower seeds, a source of oil and 



potash, 268. 

 Sunlight as a factor in evolution, 111. 

 Sun spots, influence of on climate and 



plant aclivity, 409. 

 Sunn hemp (Crotahuia Jiinaa), 120i 

 Supiily of line cotton, 150 

 Suriiiiun cliciry {Eugenia uiiijlora), 13-5, 

 — , citrus cultivatiua in, 39G. 



— quassia (Quassia amara), 74. 

 Swamp or monkey apple (Anona palus- 



ivis), 207. 



