INDEX 



371 



Rubia tinctorum, 236 

 Rushes for matting, 186, 187 



Saccharum ofUcinarum, 43 



Sachet powder, 258 



SafBower, 237 



Safflower oil, 269 



Saffron, 238 



Sago, 149 



Sal tree, 291 



Sandalwood, 286, 294 



Sandalwood oil, 285 



Sandalwood pony, 332 



Sanitation in Tropics, 11-15 



Sansevieria, 179 



Sapodilla, 136 



Sappanwood, 234 



Sarsaparilla, 223 



Satinwood, 295 



Schleichera trijuga, 346 



Screw pine, 189 



Sea Island cotton, 167 



Seaweed, 159 



Sechium edule, 158 



Semi-drying oils, 271 



Senna, 224 



Sesame oil, 275 



Settlers, opportunities in Tropics, 



36 

 Shaddock, 102 

 Shade crops, 24 

 Shading young plants, 24 

 Shea butter, 282 

 Sheep, 335 



Shellac production, 346 

 Shorea robusta, 291 

 Silk cotton, 177 

 Silk grass, 184 

 Silk production, 344 

 Silky oak, 24 

 Silos in Tropics, 320 

 Silver skin of coffee, 67 

 Sisal, 169-173 

 Smilax, 223 

 Smoke tree, 233 



Smyrna fig, iii 



Social conditions in Tropics, 35-42 



Soils, importance of texture, 23 



in Tropics, 16-23 

 Sour sop, 128 

 Soy bean, 306 

 Soy meal, 273 

 Soy milk, 273 

 Soy oil, 272 

 Soya sauce, 274 

 Spices, 239-254 

 Spondias dukis, 138 

 Sponge cucumber, 192 

 Spraying to kill weeds, 27 

 Squill, 224 

 Star anise oil, 289 

 Star apple, 134 

 Starch from cassava, 151 

 Starchy foods, 142 

 Steam plows, 22, 23 

 Sterculia oil, 279 

 Stillingia oil, 268 

 Stillingia sebifera, 281 

 Stipa tenacissima, 185 

 Strophantbus, 227 

 Strychnin, 219 

 Strychnos, 218 

 Styrax benzoin, 258 

 Sudan grass, 316 

 Sugar cane, 43-55 



burning of, 21, 22 



composition of, 45 



fertilizers for, 47 



for silage, 320 



harvesting of, 50 



manufacture of, 51 



mills for, 51 



payment for, 54 



planting of, 49 



plowing for, 49 



profit from, 40 



statistics about, 53, 54 



trash as feed, 319 



varieties of, 43 



water requirements for, 46 



