GENERAL INDEX 



Stevens, Col. John, invented a 

 rotary engine, 7, 69; a pro- 



?eller steamboat produced by, 

 ,69. 



Steyinus and the law of equilib- 

 rium, 2, 102; his horseless 

 carriage, 2, 103; explanation 

 of "hydrostatic paradox," 2, 

 104. 



Stirling, Dr., his efforts to 

 utilize the expansion property 

 of heated air in an engine, 6, 



J 33- 



Stone Age, man knew certain 

 rudimentary principles of 

 science, 1, 5; the Egyptians 

 of this age overthrown by an 

 invading host, 1, 29. 



Storage-battery systems, 6, 194; 

 7, 1 88; Mr. Edison's new 

 type of storage battery, 7, 

 190. 



Storm centre, merely an area of 

 low barometric pressure, 3, 

 202 ; expansion of air through 

 excess of temperature, 3, 203. 



Strabo, the most famous of 

 ancient geographers, 1, 255; 

 an investigator of details, not 

 an original thinker, 1, 257; 

 believed that a vessel could 

 sail around the globe from 

 Spain to India, 1, 260; his idea 

 of the arrangement of the 

 zones, 1, 262; his three fun- 

 damental principles, 1, 264. 



Street, Robert, suggested the 

 use of inflammable gases as 

 explosives, 6, 135. 



Strutt, Jedediah, inventor of a 

 method of knitting a ribbed 

 surface, 9, 56. 



Strutt, William, attempted to 

 construct a self-acting mule, 

 9, 35; assisted Arkwright in 

 constructing his first mill at 

 Nottingham, 9, 27. 



Struve, F. G. W., discovered 

 many double stars, 3, 58; 

 discovered that many seem- 

 ingly single stars are really 

 clusters, 3, 59. 



Studies in the division of egg- 

 cells, 6, 134, i35- 



Study of diseases in the Berlin 

 Institute of Pathology, 6, 

 186-193. 



Sturgeon, constructed the first 

 electric magnet, 6, 176. 



Submarine Cable, The, Chapter 

 II, 8, 3. 



Submarine Vessels, Chapter III, 

 7, 93 ; first practical sub- 

 marine boat made by David 

 Bushnell, and details of its 

 construction, 7, 94-98; Rob- 

 ert Fulton's experiments, 

 7, 98; Fulton's first sub- 

 marine boat, the Nautilus, 7, 

 99; the attack on the Argus 

 by Fulton's submarine, 7, 

 101; the attacks on the 

 Ramillies, 7, 102; a successful 

 diving boat, 7, 103; the sink- 

 ing of the Housatonic, 7, 104; 

 recent submarines and sub- 

 mersibles, 7, 105 ; the Holland, 

 7, 1 06; the Lake type of boat, 

 7.io8; the unsolved problem 

 of marine navigation, 7, no; 

 present status, 7 ? in. 



Submarine Signaling, 7, 83; 

 early experiments with, 7, 

 86; practical application of, 

 7, 88. 



Successors of Galileo in Physical 

 Science, The, Chapter X, 2, 

 204. 



Successors of Newton in astron- 

 omy, The, Chapter I, 3, 3. 



Suction, studied by early philos- 

 ophers, 6, 64; explanation as 

 pressure of external atmos- 

 phere given by Torricelli, 6, 



65- 



Sulphuric ether, vapor of, pain- 

 dispelling power of, 4, 209; 

 Morton's use of, in dentistry, 

 4, 214; claims of Jackson 

 and Long as to priority of 

 discovery, 4, 215. 



Sulphurous gas liquefied, 5. 40. 



Sumerian, an alien civilized 

 race, settled in Mesopotamia, 

 overthrown later by Semitic 

 invaders, 1, 60. 



Sun, the, observations of, by the 

 spectroscope, 4, 71; study of, 



