INDEX. 



The capital numerals refer to the volumes, the figures to the pages. 



Ali properiiames are inserted, except those which occur in the catalogue as the authors of essays inserteJ iu collec- 

 tions of any kind. The years of the birth and death of die most eminent persons arc added, where they have been 

 ascertained, as a supplement to the chronological tables. 



Aaron Reschid, i. 59s. 



Abacus, II. 116. 

 Abat, II. 283. 

 Abb6 P. II. 309. 

 Abduction of heat, II. 405. 

 Abernethy, II. 585, 580. 

 Aberration, II. 286. 

 Aberration from colour, I. 



431. 

 Aberration of light, I. PI. 



29. II. 294, 373. 

 Aberration of the stars, 1. 



436, 462, II. 321, 344, 



355, 645. 

 Aberrations of lenses, II. 



281. 

 Aberrations of refraction, 



ir. 75. 



Abhandlungen der Kaiser- 

 lichen academic, II. 107. 



Abr^g^ des transactions 

 philosophiques, II. 106. 



Absorption of air, II. 464. 



Abutment of a rafter, II. 

 179. 



Abutments, I. 163, II. 176. 



AcadeniiaCacsarea, 11.107. 



Academia di Siena, II. 107. 



Academia Theodoropala- 

 tina, II. 109. 



Academicians, I. 370. 



AcademiedeBerlin,!!. 107. 



Academic de Dijon, II. 



asi. 



AcadC^mie de Montpeiier, 



II. 108. 

 Academic des Inscriptions, 



II. 501. 

 Academy del Cimento, I. 



638, 749. 

 Academy of Brussels, II. 



109. 

 Academy of Erfurt, II. 109. 

 Academy of Paris, I. 251, 



357, 360, 749. 

 Academy of Petersburg, I. 



749. 

 Accelerated motion,I. Pl.l. 

 Accelerating forces, I. 27. 



II. 28, 131. 

 Acceleration, I. 29. 

 Acceleration of the moon's 



motion, I. 521, II. 336. 

 Acceleration of tides, 1.585. 

 Accidental colours, II. 314. 

 Accidental properties of 



matter, I. 607. 

 Accommodation of the eye, 



I. 450, II. 312, 523. 

 Accompaniment, I. 394, II. 



566. 

 Account of dials at White- 

 hall, II. 348. 

 Accoutrements, II. 203. 

 Accura, 11. 207. 

 Accumulation of electricity, 



I. 670. 

 Achard, I. 754, II. 112, 127, 



391, 393, 401,652,653. 



Achernar, I. 498. 

 Achromatic eye piece, I. 



432. 

 Achromatic glasses, I. 431, 



II. 80, 323. 

 A-chromatic lenses, II. 284. 

 Achromatic telespopes, I. 



478, PI. 28. II. 287. 

 Achromatic telescopes of 



one kind of glass. II. 287. 

 Acids, I. 678, II. 420, 510, 



67S. 

 Acre, II. 150, 151. 

 Acta eruditorum, II. 107. 

 Acta Hassiaca, II. 109. 

 Acta literaria Sueciae, II. 



103, 

 Acta physicomedica,II.107. 

 Acta Upsaliensia, II. 108. 

 Acting pump, I. PI. 23. II. 



236, 238. , 



Actinia, II. 51T, 

 Action of sohds on fluids, 



II. 669. 

 Actions of fluids, II. 219. 

 Actual focus, I. 414. 

 Acusrics, I. 258, 367. II. 



1S9, 264, 279. 

 Adair, I. 714. 

 Adami, II. 227. 

 Adams, II. 128, 144, 286 , 



311, 417, 437, 461. 

 Addition, 11. 1. 

 Adhesion, I. 146, 152, 155 



627, 11. 509. 



Adhesion of air, II. 381. 

 Adhesion of fluids, II. 652. 

 Adhesion of surfaces, II. 



381. 

 Admission of heat, II. 406. 

 Adsiger, I. 746, 756. 

 Advancement of science, I. 



755. 

 Aeolian harp, I. 383, 399, 



II. 274, 275, 564. 

 Aeolipile, II. 410. 

 Aepinus, I. 658, 685, 751, 



756, II. 285, 417, 418, 



435, 437. 

 Aerial excursions, II. 256, 

 Aerial perspective, I. 454, 



ir. 314. 

 Aerial telescope, II. 286. 

 Aerometry, II. 387. 

 Aerostatic voyage, II. 447. 

 Aerostatation,II. Top.256. 

 Aerostation, II. 256. 

 Affinities, II. 380, 510. ^ 

 Affinities of earths; II. 677. 

 Africa, I. 571, II. 367. 

 Agaricus orcadcs, II. 482. 

 Agate, n. 184. 

 Agave, II. 185. 

 Age, II. 516. 

 ' Aggregation, I. 628,11.511. 

 Agitation, I, 212, 252. II, 



137, 216. 

 Agitation of a fluid, II. 223. 

 Agitation of the needle, II. 



441. 



