JOO 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 130 



Social life, 4, 5, 8, 9, 12, 13, 15, 16, 17, 18, 20, 



Social organization, 8, 115 



Social system, 6 



Society, 8, 13, 59, 115 



Society Islands, 54, 147 



Societies, i6; comparison human and insect, 8, 11, 



12, 20, 115; cooperative principle, 115; origin 



of, 13; physiology of, 10 

 Socorro Islands, 144 

 Socotra Island, Indian Ocean, 117 

 Sodium arsenate, iii, 130, 131 

 Sodium arsenite, 31, 36, 87, 109-114, 128, 132, 



134> 137 

 Sodium chromate, 131 

 Sodium dichromate, 131 

 Sodium fluoride, 132 

 Sodium fluosilicate, poison dust, 87 

 Sodium pentachlorophenate, wood preservative, 



130. 134 



Sodium tetrachlorophenate, wood preservative, 130 



Soil, 43, 44, 68, 70, 71, 118; ecology of, 14; 

 soil mounds, value of, 26, 70, 71; relation to 

 poisons, III 



Soil poisons, repellents, 3, 4, 27-37, 109-115, 132, 

 136, 137; Africa, 110-112; application methods, 

 113, 114; Australia, 109-112; boxes, ammuni- 

 tion dumps, 114; carton nests, 113; Connecticut, 

 114; distribution or coverage, 112; dosages, 

 109-115; Formosa, 112, 113; Hawaii, in, 113; 

 effectiveness, 110-114; India, no; inorganic 

 weed killers, 109; insecticides, organic, 33, in, 

 113, 114; list of, 112; Louisiana, 114; Malaya, 

 no; mound nests, no-115; National Pest Con- 

 trol Assn., 114; nicotine impregnated water, 

 33, 112; Pacific area, 113; Panama, in, 112, 

 114; Philippines, 112, 114; poles, 112-114; pre- 

 trcatment before building, 36, 37, 110-114; 

 St. Helena, 109-111; soil's relation to, in; 

 spray, 112, 114; "Termi-pipe," Hill-Smith, 28; 

 tests, 110-114; Texas, 115; Tropics, 115; U.S., 

 109-115; U.S.D.A., 109, no; water suspen- 

 sions, 112; weed killers, metal, 109; wood 

 preservatives, 114 



Soldier(s), 4-6, 8, 9, 12-15, 18, 19, 22-25, 37. 

 59, 60, 69-71, 76, 77, 81, 83-88, 90, 94, 95, 

 106, 107, 115-117, 120; Constrictotermes cavi- 

 jrons, phylogeny, 8, 59, 60, 86; defense of 

 colony, 9, 12, 16, 62, 106, 107; fertile, n, 23, 

 24; mandibulate in Etitermes nests, 12; origin 

 of, 8, 23, 25, 59, 60, 83; sterile, 94 



Solenopsis geminata rufa, ant, 90 



Solignum, wood preservative, 134 



Solomon Islands, 14, 54, 102, 125, 147 



Somatic development, 18 



Somatogene theory, 25 » 



Sound, 7, 27, 49, 62, 106, 107, 115 



South Carolina, 39 



South Seas, 63, 127 



Space, living, factor in determining type repro- 

 ductives, 22 



Spain, 17, 40, 41, 55, 56, 146 



Spanish Peninsula, 17, 56, 146 



Specifications. See Building Codes; Control, Wood 

 preservation 



Specific gravity, relation to durability, loi 



Spectditermes proratus, 116 



Sperm, cell nutrition, 69 



Spermatocyte, 37 



Spermatogenesis, 10, 69, 115 



Spermatogonia, 70 



Spermatoza, 10, 69, 70 



Spcrmatozoids, heterozygotic, 24 



Sphaciotennes sphaaothorax, 10, 79 



Spicotermes, 1 1 6 



brevicarinatus, 116 



Spider, Scorteccia termitartim, termitophile, 120 



Spirachtha, Staph., termitophile, 106, 124 



Spirochaeta, bacteria, 3 



Spirochaetes, 3, 49, 50, 85, 92, 95, 97 



Spironympha, Protozoa, 91 



Spirotncho7iympha, Protozoa, 91-94 



Spores, 82 



Spwotrichtim globuliferum, fungus, 84 



Spraying, metal, 134 



Sprue, human disease, 3, 50 



Stains, removal, 34 



Staphylinidac, termitophiles, 119-122, 124 



Starch, 50, 83, 98 



Starlings, predators, 90 



Starvation, 24, 60, 68, 81, 91, 98 



State workers, relation to commercial termite con- 

 trol companies, 36, 98 



Staurojoenina, Protozoa, 95 

 assimilis, 95 

 catiUcryi, 94 



Steeping, method preservation, 130 



STD, soil poison, 34 



Stenogastric, 124 



Stenovalgus, Col., Scarab., Ivory Coast, termi- 

 tophile, 120 



Stephanonympha lindoya, Protozoa, 93; S. sp., 93 



Sterile castes, asexual, 8, 15, 16, 24, 37, 59, 70 



Sterility, correlated with Protozoa, 91 



Sterilization, 91 



Stcrnitcs, compared with other blattopteroids, 76 



Stethoscopes, in detection, 49 



Stimulant, stimuli, 81, 82 



Stolotermes, 86, 116 

 ruficeps, 12, 47, 55 



Stomach poisons, Java, in 



Stomodeal, food, 107 



Streblomastix, Protozoa, some of no value to 

 host, 92; S. strix, 96 



"Street cleaning," or sanitation, 20 



Strength, tests impregnated wood, 130, 132, 133 



Stridulation, 76, 107, 115 



Strobilonympha, Protozoa, 93 



Structure, modification of, adaptation to environ- 

 ment, 77 



Strychnine, 6i 



Subcastes, 16 



Subgenera, 76, 86 



Substratum communication, 49 



Subterranean cities, 78 



Subterranean nests, 8, 9, 12, 15, 59, 60, 68, 78-81, 

 106, 113 



Subterranean termites, 14, 27-43, 49. 54. 57. 67, 

 78, 87, 110-114, 135 



Subtropics, 12, 53, 84 



