GENERAL INDEX 



provement to the bicycle, 7, 



IS5 ' 



Cow-pox, 4, 194, 195; persons 



afflicted with, secure from 

 small-pox, 4, 196. 



Coxwell, the record flight of one 

 of his balloons, 7, 256. 



Crane, use in antiquity, modern 

 crane, 6, 38; combines prin- 

 ciple of lever and inclined 

 plane, 6, 39. 



Croll, Dr., computes that the 

 Gulf Stream conveys to the 

 North Atlantic one-fourth the 

 heat which it receives from 

 the sun, 8,197; it is produced 

 by the actual trade-winds, 

 3, 198; the effect on the 

 climate of Europe should its 

 course be deflected, ibid. 



Crompton, Samuel, inventor of 

 the spinning-machine called 

 "the mule," 9, 32; early life 

 and events leading up to his 

 invention, 9, 32; the scant 

 recompense he received for 

 his great invention, 9, 34. 



Crookes, Sir William, experi- 

 ments with the cathode rays, 

 3, 249; and radio-active sub- 

 stances, 5, 103; his spinthari- 

 scope, 5, 104; his experiments 

 showed that nitrogen in the 

 atmosphere can be made to 

 combine with oxygen, 6, 306. 



Crps, Charles, described a way 

 in which an instrument might 

 be made that would produce 

 such sounds as the human 

 voice, 8, 94- 



Cross-staff, the crudest form of 

 apparatus for measuring the 

 height of the sun and stars, 7, 

 19. 



Crotonian School of Philosophy, 

 founded by Pythagoras, 1, 

 112. 



Crowbar, modified form of lever, 



6, 57- 



Ctesibius, his studies of the 

 problems of matter, 1, 243; 

 invention of mechanism to 

 show that heat can do me- 

 chanical work, 1, 247; fire- 



engine of, described, 6, 63; 

 studies phenomena of suc- 

 tion, 6, 94. 



Cugnot, manufactured a steam- 

 driven wagon, 7, 158. 



Cunard, Samuel, the founder of 

 the Cunard Line, 7, 74. 



Cupping-glass, 6, 64. 



Curie, Madame Skaldowska, dis- 

 covery of radium, 5, 100; the 

 theories of radio-activity of, 

 6, 106. 



Curie, Professor Pierre, dis- 

 covery of radium, 6, 100; the 

 theories of radio-activity of, 

 6, 106. 



Curtiss, Glenn H., his success- 

 ful flight from Albany to New 

 York, 7, 296. 



Cuvier, George, his investiga- 

 tions concerning extinct 

 species, 3, 78; his inquiries 

 respecting the fabulous ani- 

 mals of the ancients, 3, 81; 

 agrees with Smith's views, 3, 

 83; on catastrophism, 3, 85; 

 rejects the fossils discovered 

 by Dr. Schmerling, 3, 103; 

 his classification of the ani- 

 mal kingdom, 4, 102; his 

 law of co-ordination, 4, 107; 

 his opposition to the trans- 

 mutation doctrines, 4, 153, 

 158. 



Cyclones, 3, 199-205; a system 

 of whirls, 3, 202; primary 

 cause of, 3, 203; anti-, 3, 

 204. 



Cyrus the Great, hie use of the 

 wireless telegraph, 8, 3; an 

 interesting cylinder recording 

 his victories now preserved 

 in the British Museum, 8, 105. 



DAFT, Leo, the inventions of, 7, 

 184. 



Da Gama, Vasco, navigated to 

 India by way of the Cape of 

 Good Hope, 7, 46. 



Daguerre, Louis J. M., brought 

 photography to perfection, 4, 

 70; 8, 202; discovered a 

 practical method of develop- 

 ing photographic plates, 8, 



