INDEX. 



ABBEVILLE 



ABBEVILLE flint implements, 415 

 Aberration of fixed stars, 265 

 Academies of science founded, 124 

 * Academy of Secrets ' at Naples, 74 

 Achromatic telescopes, 169 

 Acids, strong, discovered by Geber, 45 

 Adams calculates the position of Neptune, 



292 ; on November meteors, 299 

 ^sculapius god of medicine, 15 

 Aerial acid, Bergmann on, 230 

 Agassiz, his history, 410 ; on glacial period, 



411-15 : his natural history school, 411 ; 



recognises glaciation in Scotland, 414 

 Aigle, meteoric stone-fall at, 297 

 Air, Boyle and Hooke, experiment on, 



130 ; M ayow on, 131 ; -cells studied by 



Malpighi, 138 ; -pump, section of, 121 ; 



Guericke's, 121 ; -tubes of insects, 139 

 Airy, Adam's paper on Neptune sent to, 293 

 Albategnius calculates length of year, 45 

 Albinus, anatomical drawings of, 196 

 \lchemists, Arabian, 41 

 Aldebaran, spectrum of, 327 

 Alembert, d', brings Laplace to Paris, 267 

 Alexandria, founding of the city of, i8 ; 



school of learning at, 18 ; taken by the 



Arabs, 39 ; Egyptian animals preserved 



at, 391 

 Algebra, an Arabian name, 46 

 Alhazen on eyesight, 47 ; on refraction, 



47 ; on atmospheric refraction, 48 ; on 



magnifying power of lenses, 49 

 Alps, glaciers of the, 412 

 Amazons, closely related butterflies of the, 



420 

 Amber, electric nature of. 77 

 America, Agassiz natural history school in, 



411 ; glaciation of, 414 

 Ammonia, origin of name, 45 

 Ampere, early life of, 343 ; on direction of 



magnetic current, 345 ; on electro-mag- 



ANIMALS 

 nets, 347 ; invents the galvanometer, 351 ; 

 on cause of terrestrial magnetism, 352 ; 

 suggests electric telegraph, 357 



Analysis term explained, 371 ; of sub- 

 stances by tests, 229 ; of organic sub- 

 stances, 192, 377 ; different methods of, 

 369 ; Spectrum-, 315 



Anatomy, Erasistratus and Herophilus on, 

 26 ; Vesalius on, 67 ; Eustachius and 

 Fallopius on, 68 ; vegetable-, 140 ; rise of 

 comparative, 197 ; Haller and Hunter 

 on, 199 : Cuvier on, 395 



Anatomical plates of Vesalius, 67 ; of Haller, 

 196 



Anaxagoras on the moon and on eclipses, 

 13 ; banished, 14 



Anaximander, science of, 9 



Anderson brings Newcomen engine to Watt, 

 245 



Anderson, Mr., gave Penikese island, 411 



Animal, substances made of altered vege- 

 table matter, 194 ; electricity, 259, 261 



Animalcules, discovery of, 140 



Animals, Cuvier on internal structure of, 

 396 ; fossil, restored by Cuvier, 397 ; 

 Lamarck on development of, 393 : simi- 

 larity of structure in, 394 ; difficulty in 

 distinguishing species of, 420 ; useless 

 organs in, 421 alike in the embryo, 421 ; 

 living and fossil nearly related, 422 ; 

 gradual succession of, on the globe, 422- 

 424 ; selection of by man, 428 ; natural 

 selection of, 417, 429 ; fossil, intermediate 

 forms of, 424 



Animals and plants, Aristotle on links 

 between, 16 ; history of, by Gesner, 

 69 ; classified by Ray and Willughby, 

 142 ; Linnaeus gives specific names to, 

 210 ; Buffon on distribution of, 205 ; 

 Grew and Malpighi on, 137-142; Dar- 

 win and Wallace on, 426 



