GENERAL INDEX 



plied to light and heat, 6, 154; 

 unsuccessful in his attempts 

 to show that changes in chem- 

 icals are due to the action of 

 heat rather than of light, 8, 

 221. 



Rumsey, James, practical test 

 of boat built by, 7, 67. 



Rush, Dr. Benjamin, leader in 

 reforms for care of insane, 4, 



245- 



Rust, early printer whose press 

 was a modification of the 

 Gutenberg press, 8, 122. 



Rutherford, Professor, explains 

 the presence of helium in 

 radium, 6, 105; and the in- 

 stability of the atom, 6, no. 



SABBATICAL DAYS, the four days 

 in the month set apart for 

 rest from work by the Assyr- 

 ians, 1, 65; the foundation of 

 the Hebrew Sabbath, ibid. 



Sailing by dead reckoning, 7, 

 14; explanation of, 7, 15. 



Sails, used in antiquity by the 

 Phoenicians, 6, 62; used by 

 the Egyptians, 7, 56; modern 

 sailing ships, 7, 60. 



Saint-Hilaire, Etienne Geof- 

 froy, the doctrine of trans- 

 mutation championed by, 4, 

 161. 



Saint, Thomas, inventor of an 

 early type of sewing-machine, 

 9, 89. 



St. Victor, Niepce, invented the 

 glass negative from which 

 photographic prints could be 

 made, 8, 229. 



Salerno, medical school at, 2, 29. 



Saliva, its share in preparing 

 food for absorption, 4, 130. 



Salva, Don Francisco, tele- 

 graph invented by, 8, 8. 



Sanborn, Edward H., his report 

 on motive power appliances 

 quoted, 6, 73; article on 

 Motive Power Appliances, 6, 

 129. 



Sanctorius discovers "insensible 

 perspiration," 2, 187. 



Sandeman, quoted as to ancient 



versus modern methods of 

 pottery-making, 9, 249. 



Sanger- Shepherd, inventor of a 

 single-lens camera, 8, 238; 

 his work in perfecting color- 

 photography 8, 239. 



Sans-pareil, description of the 

 famous locomotive bearing 

 this name, 7, 132. 



Santos-Dumont, the balloons of, 



7, 266. 



"Sarcode," the fluid contents of 

 cells, 4, 124. 



Sargon, Mesopotamian con- 

 queror, his achievements re- 

 corded on a prism now pre- 

 served in the British Museum, 



8, 105. 



Saturn, the discovery of the 

 inner rings of, by Bond and 

 Dawes, 3, 44; Maxwell's paper 

 "On the Stability of Saturn's 

 Rings," 3, 45-48. 



Savannah, the first steamship to 

 cross the ocean, 7, 73; de- 

 scription of the, 7 1 73. 



Savary, an astronomer of Paris, 



3, 58. 



Savery, Thomas, patented a 

 steam engine to be applied to 

 the raising of water, Q } 85. 



Saw, modification of inclined 

 plane, principle of, 6, 55. 



Saxton, his name intimately con- 

 nected with the early efforts 

 at utilization of magneto- 

 electric power, 6, 178. 



Sayce, Professor Archibald 

 Henry, on Chaldean supersti- 

 tions, 1, 70. 



Sayce, one of the inventors of 

 the collodion-emulsion proc- 

 ess, 8, 231. 



Scandium discovered, 4, 68. 



Scheele, Karl Wilhelm, oxygen 

 and chlorine discovered by, 



4, 23; his discovery of chlo- 

 rine, 4, 25; believed in the 

 phlogiston theory, 4, 27; his 

 many discoveries, 4, 27, 28; 

 experiments in the mysteries 

 of respiration, 4, 93; dis- 

 covered the fact that certain 

 chemicals quickly change 



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