[198] This is his Animadversions upon Mr. Hobbes' late book De principiis et ratiocinatione geometrarum, 1666, or his Hobbianae quadraturae circuli, cubationis sphaerae et duplicationis cubi confutatio, also of 1669.
[199] This is the work of 1669 referred to above.
[200] Gregoire de St. Vincent (1584-1667) published his Opus geometricum quadraturae circuli et sectionum coni at Antwerp in 1647.
[201] This appears in J. Scaligeri cyclometrica elementa duo, Lugduni Batav., 1594.
[202] Adriaen van Roomen (1561-1615) gave the value of π to sixteen decimal places in his Ideae mathematicae pars prima (1593), and wrote his In Archimedis circuli dimensionem expositio & analysis in 1597.
[203] Kästner. See note [30] on page [43].
[204] Bentley (1662-1742) might have done it, for as the head of Trinity College, Cambridge, and a follower of Newton, he knew some mathematics. Erasmus (1466-1536) lived a little too early to attempt it, although his brilliant satire might have been used to good advantage against those who did try.
[205] "In grammar, to give the winds to the ships and to give the ships to the winds mean the same thing. But in geometry it is one thing to assume the circle BCD not greater than thirty-six segments BCDF, and another (to assume) the thirty-six segments BCDF not greater than the circle. The one assumption is true, the other false."
[206] The Greek scholar (1559-1614) who edited a Greek and Latin edition of Aristotle in 1590.
[207] Jacques Auguste de Thou (1553-1617), the historian and statesman.