INDEX 



(Where proper names occur more than once, the principal entry, generally 

 containing a short biographical notice, is printed in italics) 



PAGE 



Abel, Sir F. - 199,202 



Abernethy, J. - - 264 



Aberration of light - 62, 70 



Abney, Sir W. - - 160,173 

 Absorption, spectrum analy- 

 sis - - - 155-9 

 Academic des Sciences 97, 115, 120 

 Achromatism of lenses 98, 99 

 Acoustics, see under Sound. 

 Adami, J. G. - - 301, 306 

 Adams, J. C. - 125-7 

 Addison, T. 300 

 Aeronautics : 



First hydrogen balloon 68 

 Glaisher's balloon as- 

 cents - - - 176 

 Roy's experiments - 307 

 Agassiz - - - 318 



Agriculture - - 252,253 

 Air: 



Boyle's law - 75 



Composition of - - 85 

 Liquid - - 213 



Airy, Sir G. B. - -70,HS>,126 

 Astigmatism - - 120 

 Organization of observa- 

 tories - - 165 

 Aitken, J. - 176 

 Alizarin colours - 163,200 

 Alkali, manufacture of 194 

 Allman, G. J. - - 282 

 Marine research - - 292 

 Allman, Prof. W. - - 254 

 Allport, S. - 311 

 Alluvial deposits - - 318 

 Alpha particles - - 184 

 Anaemia, pernicious, dis- 

 covery of 300 

 Analytical Society - - 117 

 Anaxagoras - - 14 

 Anaximenes 8 



PAGE 



Andrews, T. - - 139, 140 

 Angout, A. - 95 



Aniline dye discovered 200, 201 

 " Animal " electricity - 106 



Anti-septic surgery - - 306 

 Apjohn, J. - - 176 



Arago - - 19,119,126,140 

 Archer, F. S. - - - 173 

 Archibald, E. D. - 176 



Arctic expeditions, see under 



Expeditions. 



Argon, discovery of - - 181 

 Aristotle - - 14,216 



Arrhenius - 146 



Asclepiadess - - 244 



Ashmole, E. - 261 



Ashmolean Museum, founda- 

 tion of - 261 

 Astigmatism, discovery of 120, 300 

 Atom - - 14 

 Atomic Theory - 15 

 Numbers - - 185 

 Austen, G. - 319 

 Ayrton, W. E. - - - 193 



Babbage, C. 

 Bache, Dr. 

 Bacon, F. 

 Bacon, R. 

 Baily, F. - 



117,118 



- 159 



- 223 

 7,8,218 

 162, 208 



Baines, Sir T., footnote - 295 

 Balloons - - 68, 176 



Balfour, F. M. - 277, 284, 301 

 Balfour, J. H. - - - 254 

 Banks, Sir J. - 116, 241, 243 



Founding of Royal In- 

 stitution - 213 



Agricultural research - 238 

 Barrow, I. 49 



