Index 



277 



Copper, 1 80; beryllium-copper, 48, 

 181 



Corn, cobs and stalks, 206; waxy, 202 



Corning Glass Works, 192, 194, 195, 

 196 



Cotton, 189, 200-201, 205-206; cellu- 

 lose from, 205; leather, 205; roads, 

 206; tire carcasses, 206 



"Cracking" of petroleum, for high- 

 octane gasoline, 55 



Cryolite, 174 



Current, alternating and direct, 117- 

 118 



acid, 159; sulfanilamide and deriva- 

 tives, 1 60; sulphonal, 160, 229, 230, 

 231, 232; veronal, 160 



Dubos, Dr. Rene J., 245 



Duffus, R. L., 175 



Du Pont de Nemours, E. L, 45, 154, 



Duralumin, 175 



Dyes, coal-tar, 159; alizarin, 159; 

 mauve, 159; synthesis of indigo, 

 Tyrian purple, 159; from petro- 

 leum, 162 



Dysentery, 240 



Dahlberg, Bror, 14 



Davis, Dr. Harvey N., 187 



Davies, W. W., 77-78 



De Forest, Lee, 132 



De Haviland, Mosquito bomber, 53, 



191 



Dehumidifier, 34 

 Dehydrated foods, 222-225 

 Dehydrator, home equipment, 224- 



225 



Deicers, 81-82 

 Deserts, 212; use of photovoltaic cells 



on, 264 



Detonation, "knock" in engines, 54 

 Deville, Sainte-Claire, 174 

 Dicoumarin, 256 

 Diesel, Dr. Rudolph, 49 

 Diesel, engine, 49-51, 50-51, 102-103; 



in cargo and warships, 111-112 

 Diet, 216; education, 217; foods, 168, 



216-227; minerals, 218, 210-220; 



vitamins, 218, 219-220 

 Dietz, David, 45, 199-200, 238 

 Diode, 117 



Domagk, Dr. Gerhard, 238 

 Donald McKay, motor ship, 1 1 1 

 Douglas transports, 89, 92 

 Dow Chemical Company, 154, 164, 



176, 269 

 Dowmetal, 177 

 Dow, Willard, 177, 269 

 Drugs, coal-tar, 159; aspirin, 160; ata- 



brin, 160; phenacetin, 160; salicylic 



Ear, plastic reconstruction of r by 

 Drs. Valdes and Schulhof, 255 



Eastern Airlines, 86 



"Edison effect," 116 



Edison, Thomas A., 116, 132 



Egyptians, 20-21 



Ehrlich, Dr. Paul, 238 



Electricity, 174-175, 261-262; on 

 farm, 267; generated by thermo- 

 couples, 265; photovoltaic cell, 264; 

 transmission of high voltage direct 

 current, 118; transmitted by radio, 

 265-266; Steinmetz' prediction on 

 cheap electricity, 266 



Electrocardiograph, 130 



Electronics, 5, 115-151; cooking by, 

 270; electrosurgical apparatus, 257; 

 radio, 34, 132-133; television, 132, 

 133-148 



Electron, 116; as catalyst, 264; "chem- 

 otronics," 264; current, 261-262; 

 gun, 145-146; microscope, 131, 252, 



257 



Electron tubes, 117; diode, 117; col- 

 orimeter, 130; iconoscope, 145-146; 

 photoelectric tube, 125-128; spec- 

 trophotometer, 1 26-1 27 ; strobo- 

 scope, 129-130; thyratron, 117-118 

 Elements, used by chemist, 158 

 Engine, automobile, air-cooled, 47; 

 Diesel, 49-51; efficiency of, 50; 

 high-compression, 48; high-octane 

 gasoline, 54-55; "pancake" style, 



