INDEX. 



ABSORPTION of atmosphere, 



1 68, 169 

 earth'sradiantheat, 1-5 



Accumulator, electric, 439, 442, 

 443, 452-455, 546 



Accurate electrical measure- 

 ment, 212-215 



Adams, 38, 39, 41, 69, 71, 154, 

 270, 498, 508-9 



Air, electrification of, 228-236 

 engine, 424 



Airy, 18, 25, 152 



Aldrich, 282 



Andrews, 146, 158, 177, 179 



Angstrom, 8, 173, 175 



Animals, as source of energy, 

 431-2, 435 



Anjou, 467-470 



Archimedes, 483 



Architecture, 210, 211 



Arctic regions, warm climate 

 in, 273-280 



Aristotle, 483 



Armstrong, Lord, 517, 519 



Astronomical clock, 40, 41, 387 



-394 



Atlantic telegraph, 161 

 Atmospheric electricity, 216, 



227, 228-236 

 Atomic elasticity, 164 

 Aurora, 221-228 



VOL II. 



B 



Balfour Stewart, 143, 173 



Ball, Sir R., 528 



Bangor laboratories, 480-506 



Barnard, 527-8 



Bastian, 199 



Beats of imperfect harmonies, 



395-417 



definition of, 402, 403 



table of, 406 

 Belcher, 277, 278 

 Bernouilli, 16, 162, 536-9 

 Bezold, 545 

 Bischoff, 304, 305, 308 

 Boole, 139 

 Boscovich, 167, 539 

 Brewster, 132-135, 168 

 British Association, origin of, 



132-135 



Bryce, Dr., 127 

 Bunsen, 179 



Calculus of variations, 581-5 



Campbell, 60 



Carey Foster, 498 



Carnot, 122, 424, 430, 459-466, 



469-474, 565-7 

 Cathode stream of molecules, 



554-5 



QQ 



