Book,  Chapter

1        I,  XXIII|       as they were from their mother earth, and not unlikely,
2       II,  V    |        Have you no father nor mother?” asked Pablo, one day.~“
3       II,  XI   |    day—“A happy return to our Mother Earth,” must fairly have
4       II,  XII  | saying that ‘Necessity is the mother of invention.’ Besides,
5       II,  XIII |      should send them back to Mother Earth less ignorant than
6       II,  XIV  |      father, and I can be her mother.”~Servadac laughed. “Then
7       II,  XVI  |     one of their last ties to Mother Earth had been broken; the