arkable, numbering
some fourteen thousand.

[343] He was curator of experiments for the Royal Society. He wrote a large
number of books and monographs on physics. He died about 1713.

[344] Lee seems to have made no impression on biographers.

[345] This work appeared at London in 1852.

[346] Of course this is no longer true. The most scholarly work to-day is
that of Rudio, _Archimedes, Huygens, Lambert, Legendre, vier Abhandlungen
ueber die Kreismessung ... mit einer Uebersicht ueber die Geschichte des
Problems von der Quadratur des Zirkels, von den aeltesten Zeiten bis auf
unsere Tage_, Leipsic, 1892.

[347] Joseph Jerome le Francois de Lalande (1732-1807), professor of
astronomy in the College de France (1753) and director of the Paris
Observatory (1761). His writings on astronomy and his _Bibliographie
astronomique, avec l'histoire de l'astronomie depuis 1781 jusqu'en 1802_
(Paris, 1803) are well known.

[348] De Morgan refers to his _Histoire de l'Astronomie au 18e siecle_,
which appeared in 1827, five years after Delambre's death. Jean Baptiste
Joseph Delambre (1749-1822) was a pupil of and a collaborator with Lalande,
following his master as professor of astronomy in the College de France.
His work on the measurements for the metric system is well known, and his
four histories of astronomy, _ancienne_ (1817), _au moyen age_ (1819),
_moderne_ (1821), and _au 18e siecle_ (posthumous, 1827) are highly
esteemed.

[349] Jean-Joseph Rive (1730-1792), a priest who left his cure under grave
charges, and a quarrelsome character. His attack on Montucla was a case of
the pot calling the kettle black; for while he was a brilliant writer he
was a careless bibliographer.

[350] Isaac Barrow (1630-1677) was quite as well known as a theologian as
he was from his Lucasian professorship of mathematics at Cambridge.

[351] "Besides we can see by this that Barrow was a poor philosopher; for
he believed in the immortality of the soul and in a Divinity other than
universal nature."

[352] The _Recreations mathematiques et physiques_ (Paris, 1694) of Jacques
Ozanam (1640-1717) is a work that is still highly esteemed. Among various
other works he wrote a _Dictionnaire mathematique ou Idee generale des
mathematiques_ (1690) that was not without merit. The _Recreations_ went
through numerous editions (Paris, 1694, 1696, 1741, 1750, 1770, 1778, and
the Montucla edition of 1790; London, 1708, the Montucla-Hutton edition of
1803