les importants, consequential people

Page 100. — 1. Leuwenhoek et Hartsoeker: Antonius van l.eeuwenhoek {Laf-ven-Aook), 1632-1723, Dutch naturalist, one of the most successful pioneers in the use of the microscope; Nikla^s

Hartsoeker {Hart'-soo-ker), 1656-1725. Dutch physicist and histologist.

Page 109. — 1. Swammerdam, celebrated Dutch naturalist (1 637-1 680).

2. Reaumur, French physicist and naturalist, inventor of the thermometer which bears his name (1683-1757).

Page 110. — 1. a l'heure que jevous parle; the story is laid in 1737 and the war here referred to is that between the Turks and Russians, 1 736-1 739. By the tas de boue in line 22 Crimea is meant, which was not annexed to Russia until 1783.

Page 112. — 1. Descartes, Rene Descartes (1596-1650) famous French philosopher, physicist and geometrician.

2. Malebranche, (1638-17 15) celebrated French metaphysician.

3. I^eibnitz (1646-1716), (Jerman scientist and philosopher; he formulated the system of " monads " according to which there exists between the soul and the body a "preestablished harmony.".