INDEX. 



Abbe, Ernst, improvements in the 

 microscope, ii. 228, 229. 



Abbe, Prof. Cleveland, method of least 

 squares, ii. 576. 



Abel, N.-H., memoir by Bjerknes cited, 

 i. 184 ; investigations of, 185 ; and 

 Crelle, 186 ; on Gauss, ii. 637 ; his 

 'Life' by Bjerknes, ib. ; on Cauchy, 

 637 ; on convergency, 646 ; his pion- 

 eering work, 648 ; his relation to 

 Jacobi and Legendre, ib. ; Sylow's 

 memorial of, 649 ; his addition the- 

 orem, 649 ; 657 ; theory of equations, 

 681, 68t>, 690, 692, 693, 695, 704, 732. 



Abelard, i. 74. 



Abraham, M., ' Geometrische Grund- 

 begriffe,' ii. 73. 



Abria, experiments with vacuum tubes, 

 ii. 190. 



Absolute, the, Cayley on, ii. 715. 



Abstraction, process of, ii. 201. 



Academic culture in France, i. 134. 



Academic de Chirurgie, i. 107. 



Academic des Sciences, i. 107. 



Academic des Sciences morales et pol- 

 itiques, i. 145. 



Academies, provincial, in France, i. 

 107. 



Academy of Saxony founded, i. 100. 



Academy of St Petersburg founded, 

 i. 100. 



Academy of Vienna founded, i. 100. 



Academy, Paris, organisation and co- 

 operation of members of, i. 99. 



Achenbach, i. 165. 



Achen wall, Gottfried, the "father" of 

 statistics, ii. 555. 



Acland, Sir Thomas Dyke, ' Chemistry 

 of Farming,' i. 285. 



Acoustics, ii. 12, 485. 



VOL. II. 



Adams discovers Neptune, i. 277 ; lunar 

 theory, 329. 



Adare, Count, i. 106. 



Adrian, law of error, ii. 576. 



^Etiology, Huxley's definition of, i. 194. 



Affinity, chemical, neglect of the study 

 of, i. 420 ; chemical, ii. 157, 267. 



Agassiz on fossil fishes, ii. 257 ; " Essay 

 on Classification,' 349. 



Agnosticism, ii. 326. 



Airy and Herschel, article in 'En- 

 cyclopaedia Metropolitana,' i. 236. 



Airy, Sir George Biddell, worked in har- 

 mony with the Analytical Society, 

 i. 271 ; the discovery of Neptune, 

 277 ; measurement of an arc of 

 parallel, 322 ; calculus of probabili- 

 ties, 325 ; Tides, 330. 



Akin, ii. 107. 



Albrecht, Eusren, 'Vorfragen der Bio- 

 logie,' ii. 463. 



Alexander the Great, Napoleon com- 

 pared with, i. 153. 



Alexander VI., Pope, and the Univer- 

 sity of Aberdeen, i. 268. 



Alison, W. P., i. 272. 



Allen, Grant, monograph on Darwin 

 quoted, ii. 607; on " pangenesis," 

 610. 



Altmann, theory of " bioblasts," ii. 427, 

 444. 



America, influence of, only touched 

 upon, i. 14 ; declaration of Independ- 

 ence, 78. 



Amici, embryological studies, ii. 227 ; 

 improvements in microscope, 228 ; 

 230, 261. 



Ampere, A. M., on electro-magnetism, 

 i. 92 ; " mechanical theory of gases," 

 310 ; 3|3 ; electric currents, 347, 367 ; 



3 B 



