INDEX 



ABBEVILLE 



A BBEVILLE flint implements, 453 



** Aberration of fixed stars, 275 

 Abney, Capt., on chemical rays of light, 



Academies of science founded, 124 



1 Academy of Secrets ' at Naples, 73 



Achromatic telescopes, 166 



Acids, strong, discovered by Geber, 44 



Acoustics, Newton on, 166 ; Chladni on, 

 269 



Adams calculates the position of Neptune, 

 302 ; on November meteors, 309 



./Esculapius, god of medicine, 14 



Aerial acid, Bergtnann on, 228 



Agassiz, his history, 447 ; on glacial period, 

 448 



Aigle, meteoric stone-fall at, 307 



Air, Boyle and Hooke, experiment on, 

 128; Mayow on, 129; -cells studied by 

 Malpighi, 1 38 ; -pump, section of, 1 19 ; 

 -tubes of insects, 136 



Airy, Adam's paper on Neptune sent to, 303 



Albategnius calculates length of year, 45 



Albinus, anatomical drawings of, 196 



Alchemists, Arabian, 40 



Aldebaran, spectrum of, 344 



Alexandria, founding of the city of, 18 ; 

 school of learning at, 18 ; taken by the 

 Arabs, 39; Egyptian animals preserved 

 at, 428 



Algebra, an Arabian name, 46 



Alhazen on eyesight, 46 ; on refraction, 

 47 ; on atmospheric refraction, 48 ; on 

 magnifying power of lenses, 49 



Alps, glaciers of the, 448 



Al Sufi estimates brilliancy of the stars, 45 



Amazons, closely related butterflies of the, 

 458 



Amber, electric nature of, 74 



America, glaciation of, 451 



Ammonia, origin of name, 45 



Ampere, early life of, 369 ; on direction of 

 magnetic current, 371 *, on electro-mag- 

 nets, 372 ; invents the galvanometer, 

 377 ; on cause of terrestrial magnetism, 

 377 ; suggests electric telegraph, 382 ; 

 on pressure of gases, 405. 



ARAGO 



Analysis, term explained, 399 ; of tab- 

 stances by tests, 397 ; spectrum-, 338, 398 



Anatomy, Erasistratus and Herophilus on, 

 26 ; Vesalius on, 65 ; Eustachius and 

 Fallopius on, 66 ; vegetable-, 138 ; rise of 

 comparative, 197 ; Haller and Hunter 

 on, 197 ; Cuvier on, 432. 



Anatomical plates of Vesalius, 65 ; of 

 Haller, 196 



Anaxagoras on the moon and on eclipses, 

 13 ; banished, 14 



Anaximander, science of, 9 



Anderson brings Newcomen engine to 

 Watt, 244 



Andrews on critical point of gases, 406 ; 

 cited, 363 



Angstrom on the solar spectrum, 343 



Aniline dyes, 410 



Animal electricity, 257 



Animalcules, discovery of, 136 



Animals, Cuvier on internal structure of, 

 434 ; fossil, restored by Cuvier, 435 ; La- 

 marck on development of, 429 ; facts prov- 

 ing development of, 457, etc. ; gradual 

 succession of, on tlie globe, 460 ; selec- 

 tion of, by man, 466 ; natural selection of, 

 466 ; fossil, intermediate forms of, 476. 



Animals and plants, Aristotle on links 

 between, 16 ; history of, by Gesner, 67 ; 

 classified by Ray and Willughby, 140 ; 

 Linnaeus gives specific names to, 209 ; 

 BufFon on distribution of, 205 ; Grew and 

 Malpighi on, 134-138; Darwin and 

 Wallace on, 463 



Antiquity of man, 452 



Aphides, Bonnet on. 200 



Apollo or Helios, god of the sun, 17 



Apple, Newton and the, 146 ; -leaf, skin of, 

 showing stomates, 138 



Aqueous rocks, Hutton on, 218 



Arabs, conquests of the, 39 ; science of th*% 

 40 ; chemistry of the, 40 ; gunpowdei 

 known to the, 42 ; medical schools of 

 the, 40 



Arago on polarisation of light, 324 ; on 

 electro-magnetism, 373 ; on Biela's comet, 

 301 



