INDEX.
356
Plato, inertia of matter, 25. Conicsections, 29. Sides of a right-angled triangle, 38.
Platonic school, conic sections, 29.Geometrical analysis; geometricloci, 30. Duplication of thecube; trisection of arc, 31.
Plutarcb, 65. Idea of gravity,
66 .
Posidonius , 61. The tides, 65.
Ptolemy , 69. His system of theworld, 70. Astronomical instru-ments ; optics; refraction, 73.
Pythagoras , 18. Origin of the titleof “philosopher;” solar system,19. Idea of gravitation, 21.Geometry, 29.
Q.
Quadrature of the circle, visionarypretension, 98.
R.
Rainbow, theory of De Dominis,131. Des Cartes , 230.
Ramus, Peter, opposes the Aris-totelian philosophy, 129.
Revival of Greek literature; studyof Greek mathematicians, 118.
Riccioli, 239.
Roberval, quadrature, 220. Tan-gents, 221.
Roemer, velocity of light, 244.
Romans, never cultivators of phy-sical or mathematical sciencejsome few exception, 62. Philosophical poems; Sulpitius Gal-lus, 63. J. Cssar, 64.
S.
Saville, sir Henry, 194.
Science, probable origin of, 6
Snell, law of refraction, 230.
Stability of the system, 375.
Stevin, inclined plane, 130. Hy-drostatics. 131.
Stiphelius, algebraic notation, 123.
Stirling, James, 366.
T.
Taylor, Brook, method of measure-ments, 365.
Thales, astronomy, 18. Physicalviews, 23.
Toricelli, infinitesimals, 220. Pres-sure of atmosphere, 233. Hy-draulics, 232.
Tycho Brahe , sketch of his life,138. His astronomical observ.ations, 139. System of the world,140.
U.
Universities, origin of, 105. Earlycondition, 108.
V.
Vitello, optics, 113.
W.
Wallis, arithmetic of infinites, 222.
Quadratures, 223.
Walther, Bernard, 118.
Werner, geometrical analysis,119.
William, landgrave of Hesse, 137.Wren, sir Christopher, 224.
THE END.