KEY AND INDEX 



7 ; 1 60; an extraordinary 

 piece of legislation, 7, 161; 

 real progress of the automo- 

 bile due to the oil engine, 7, 

 163; scientific aspects of 

 automobile racing, 7, 164; 

 some records made at Or- 

 mond, 7, 165; records made 

 by Oldfield, 7, 166; com- 

 parative speeds of various 

 vehicles and animals, 7, 167; 

 a miraculous transformation 

 of energy, 7, 170. 



Avenzoar, Arabian physician, 

 2, 26. 



Averrhoes, commentator of Aris- 

 totle, 2, 10, 26. 



Avicenna, Arabian "Prince of 

 Physicians," 2, 24. 



Avogadro, Amadeo, 4, 43 ; law 

 of, 4, 57. 



Axe, modified form of lever, 6, 



58- 



BABYLON, its fame at its height 

 in the time of Herodotus, 1, 

 57; in Babylonian science we 

 have the Eastern mind at 

 its best, 1, 61. 



Babylonia and Assyria, Scienc 

 of, Chapter III, 1, 56. 



Babylonian astronomy, 1, 61, 

 62; adjustment of the calen- 

 dar, lj 63. 



Babylonian medicine, the prac- 

 titioner of, occupied a posi- 

 tion of authority, 1, 75; his 

 emoluments and penalties, 1, 

 76. 



Babylonian science, estimates 

 of, 1. 77; Canon Rawlinson 

 on, 1, 82; spelled supersti- 

 tion, 1, 85, 



Bachelder, John, improves 

 Howe's sewing machine, 9 f 

 96. 



Bacon, Francis, influence on 

 science, 2. 192; indirectly a 

 founder of the Royal Society, 

 2, 201. 



Bacon, Roger, 2, 44; his use of 

 lenses, 2, 45 ; supposed in- 

 vention of gunpowder, 2, 46; 

 estimate of his work, 2, 46. 



Bacqueville, Marquis de, his at- 

 tempt at aerial flight, 7, 229. 



Bacteria, discovery of, 2, 179; 

 their relation to fermentation 

 and to disease, 4, 218. 



Baeyer, produced indigo com- 

 mercially, 8, 313. 



Baglivi, Giorgio, distinguished 

 in medicine, 4, 182. 



Barlow, suggested that compen- 

 sation for deviation of the 

 compass be effected by the 

 adjustment of bodies 01 iron, 

 7,n. 



Barnett, William, suggested 

 compressing explosive mix- 

 ture in cylinder of gas engine 

 before exploding it, 6, 138. 



Barometer, mercurial, invented 

 by Torricelli, 2, 122; statical, 

 invented by Boyle, 2, 205. 



Bastian, Professor, revived the 

 claims of Pouchet, 4, 180. 



Bay of Naples, the, fauna of, 

 5, 124; abundance of mater- 

 ial for biological study found 

 in, 5, 125; uses made of speci- 

 mens found in, in scientific 

 study, 6, 128. 



Bayley, Dr., expert in spectro- 

 scopy, 6, 83. 



Beard, Thomas, shoemaker who 

 came on the Mayflower, 9, 108. 



Becquerel, Alexandre Edmond, 

 the first to take up specifically 

 the matter of color-photog- 

 raphy, 8, 235. 



Becquerel, M. Henri, discovery 

 of a radio-active substance, 

 5, 98; "rays," 6, 100; 8, 220. 



Beginnings of Greek Science, 

 The, Chapter V, 1, 103. 



Beginnings of Modern Chemis- 

 try, The, Chapter II, 4, n. 



Behring's discovery of tetanus 

 and diphtheria antitoxine, 4, 

 242. 



Belisarius, constructed floating 

 mills upon the Tiber, 6, 71. 



Bell, Prof. Alexander Graham, 

 made tests of Professor Trow- 

 bridge's instrument for trans- 

 atlantic communication, 8, 

 50; invents a practical tele- 



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