GENERAL INDEX 



Boyle, Robert, 2, 204; experi- 

 ments on air, 2, 205; calcula- 

 tion of atmospheric pressure, 

 2, 206; 6, 65; views on 

 color, 2, 208; work in elec- 

 tricity, 2, 209; his theories 

 as to the composition of the 

 atmosphere, 4, 4-6. 



Boyle's law, developed indepen- 

 dently by Mariotte, 6, 66. 



Bradley, Dr. James, discovers 

 the libratory motion of the 

 earth's axis, 3, 12. 



Bradley, in association with 

 Lovejoy, conducted experi- 

 ments at Niagara Falls de- 

 signed to extract nitrogen 

 from the air, 6, 306. 



Brahe, Tycho, a celebrated 

 astronomer who declined to 

 accept the heliocentric idea 

 concerning the earth, 1, 217. 



Braid, Dr. James, investiga- 

 tion of the phenomena of 

 hypnotism, 4, 269. 



Brain, studies of the, 4, 245-249, 

 270286; localization of cen- 

 tres, 4, 272-274; minute 

 structures of the, 4, 276-286. 



Branca, Giovanni, first to pro- 

 pose turbine engine, 6, 87. 



Branly, Dr., invented a "coher- 

 er ' ' for detecting the presence 

 of Hertzian waves, 8, 52. 



Brennan, Louis, his invention 

 of the gyrocar, 7, 195. 



Brett, John W., his connection 

 with the laying of the Atlantic 

 cable, 8, 30. 



Brewster, Dr. David, sugges- 

 tions to improve the micro- 

 scope, 4, no. 



Bright, Sir Charles, his con- 

 nection with the laying of 

 the Atlantic cable, 8, 30. 



Britannia, the first steamer of 

 the Cunard Line, 7, 74. 



British Museum, The, Chapter 

 I- 6, 3. 



British museum, the, founding 

 of, 6, 3; Sloan's collection 

 purchased for, 6, 4; acquisi- 

 tion of Hamilton's treasures 

 for, 6, 5; Egyptian antiqui- 



ties for, ibid,; erection of 

 present building, 6, 6; statue 

 of Darwin in, 6, 9; arrange- 

 ment of specimens in, 6, 10, 

 ii, public interest in, 6, 12. 



Broca, Dr. Paul, and localiza- 

 tion of speech, 4, 272. 



Bronze Age, advance of civili- 

 zation in, 6, 9. 



Brookins, W. H., altitude record 

 made by, 7, 299. 



Brown, Robert, discovery of the 

 nuclei of plant cells, 4, 115. 



Brown, Samuel, introduced a 

 vacuum gas engine for rais- 

 ing water by atmospheric 

 pressure, 6, 135. 



Bruce, Robert, his traditional 

 perseverance compared to 

 that of the heroes who laid 

 the Atlantic cable, 8, 30. 



Brugsch, an Egyptologist, 1, 28. 



"Brunonian" system, 4, 187. 



Brunton, the remarkable loco- 

 motive constructed by, 7, 

 123. 



Brush, Charles P., his invention 

 1 of an arc light, 6, 226. 



Buckett, introduced a gas en- 

 gine based on Cayley's in- 

 vention, 6, 133. 



Buffon and the transmutation 

 of species, 4, 149. 



Bull (in connection with Trevi- 

 thick) made direct-acting 

 pumping engines with an 

 inverted cylinder, fixed in 

 line with the pump rod, and 

 actually dispensing with the 

 beam, 6, 113. 



Bunsen, with Kirchhoff, per- 

 fected the spectroscope, 4, 69. 



Burnham, S. W., discovers one 

 thousand new clusters of stars, 

 3, 59- 



Burrows, Stephen, credited with 

 the discovery that the mag- 

 netized needle shifts its direc- 

 tion, 7, 0- 



Bushnell, David, first practical 

 submarine boat made by, 7, 



94- 



Butler, quoted as to the strength 

 of a web of heavy paper 



[165] 



