de la famille, one of the family

3. Qu'est-ce . . . que, what is, indeed? For que see page 87, note 1.

4. lieues ; a French league is a little less than two miles and a half, and the mean distance of the moon from the earth is about 239,000 miles.

Page 38. — i. relier entre eux, connectwith each other.

2. sélénographique, selenographic, pertaining to selenography (from two Greek words meaning "moon" and "to write," "describe"), a description of the surface of the moon.