292 INDEX 



Rubber, 37 



Rubber Plantations, 38 



Rutherford, 86 



Saccharin, 55 



Salicylic Acid, 55 



Salvarsan, 65 



School of Tropical Medicine, 154 



Scientific Spirit, 180 



Scurvy, 280 



Sea Anemone, 205 



Seed Inspection, 227 



Seneca Oil, 13 



Shale Oil, 42 



Sherman, Henry C., 247 



Silkworms, 139 



Sleeping Sickness, 67 



Slosson, Edwin E., v, 12, 48 



Smallpox, 142 



Smith, Erwin S., 236 



Smith-Noguchi Medium, 109 



Smith, Theobald, 107 



Social Wasps, 201 



Soddy, 86, 93 



Sodium, 89 



Soft Drinks, 54 



Spindling Disease, 238 



Spontaneous Generation of Life, 136, 



'39. 



Spraying, 193 



Standard Oil Company of Indiana, 19 



Steam Engine, 19, 40 



Stephenson, 27 



Stepp, 276 



St. Hilaire, 172 



Sugar, 259 



Symbiosis, 205 



Synthetic Perfumes, 54, 71 



Termites, 203 

 Thomson, J. J., 79, 91 

 Trinitrotoluene, 57 



Trucks, 41 



Trypanosomes, 67 



Tsetse Fly, 191 



Tubercle Bacilli, 65, 119, 125 



Tuberculin, 123 



Tuberculosis, 64, 115, 117 



Typhoid, 3, 64 



United States Department of Agri- 

 culture, 252, 253 



United States Forest Service, 212 

 University of Maryland, 223 

 Uranium, 85, 93 



Vaccination, 142 



Vanadium, 37 



Vegetables, 259, 285 



Vestiges, 170 



Vincent, George E., 150 



Vinci, Leonardo da, 26 



Vitamins, 229, 250, 258, 259, 265, 



267, 270, 283 

 Von Behring, no 

 Von Kluck, 24, 58 



Watt, 19 



Wealth, 15 



Wesleyan University, 252 



Williams, Linsly R., 115 



Wilson, 25 



Wind Periodicity and Precipitation, 



214 



Winds, 216 

 Wintergreen, 55 

 Wheeler, 207 



X-Rays, 95 



Yellow Fever, 3, 191 



Zon, Raphael, 112 

 Zoroastrians, 12 



