CHRONOLOGICAL TABLE. 



445 



PROGRESS OF MODERN SCIENCE. 



FROM A.D. 1674 TO 1 732. 



Astronomy. 



Physics and 

 Mechanics. 



1676. Halley ob- 

 serves transit of 

 Mercury, p. 

 158. 



1682. Newton 

 works out and 



f)ublishes the 

 aw of gravita- 

 tion, pp. 150- 



155' 



1682. Halley 

 foretells the re- 

 turn of a comet, 

 p. 162. 



1687. Newton's 

 ' P r in c i p i a ' 

 p u b 1 i s h e d, p. 

 153- 



1691. Halley's 

 method of mea- 

 suring the sun's 

 distance by the 

 transit of Venus, 

 p. 158. 



1676. Roemer 

 measures velo- 

 city of light, p. 

 172. 



1678. Huyghens 

 proposes undu- 

 fatory theory of 

 light: law of 

 double refrac- 

 tion, p. 175-179- 



1690. Papin's 

 heat-engine, p. 

 246. 



f722. Graham on 

 shifting of mag- 

 netic needle, p. 



355- „ 3, 

 1727. Bradley on 

 nutation and 

 aberration, p. 



265. 



1698. Savery s 



heat-engine, p. 



246. 

 170 5. Newco 



men's engine, 



p. 246. 



1729. C. More 

 Hall on disper- 

 sion of light in 

 flint and crown 

 glass, p. 169. 



1752. Du Faye 

 on electricity, 

 p. 254- 



Chemistry. 



Physical 



Geography and 



Geology. 



1701. Boerhaave 

 founder of or- 

 ganic chemis- 

 try, pp. 190-194. 



1 71 8. Hales' ex- 

 periments on 

 gases, p. 226. 



1729. S t a h 1 

 founds a system 

 of chemistry on 

 the theory of 

 phlogiston, p, 

 135- 



1682. Picart 

 measures the 

 size of the earth, 

 p. 150. 



695. Woodward, 

 on fossils and 

 *uccession of 

 formations in 

 England, p. 

 316. 



Biology. 



674. Malpig'ii 

 on structure of 

 plants, p. 140. 

 1677. Leeuwen- 

 hoeck discovers 

 animalcules, p 

 139- 



1682. Grew on 

 structure of 

 plants, p. 140. 



1690. Rivi nus 

 proposes to give 

 two names t o 

 each plant, p. 

 209. 



1693. Ray and 

 Willughby's 

 classification of 

 animals ; Ray's 

 system of plants, 

 pp. 142-146. 



1694. Toume- 

 fort s system of 

 plants, p. 145. 



707. BufTon and 

 Linnseus bom. 



1727. Hales on 

 respiration of 

 plants and for- 

 mation of sap, 

 P- 193- 



