We alone have known how to provide ourselves with fire
5. To rub two pieces of wood rapidly one against the other till
they kindle {s'enflammer) is a very primitive way {moyen, m.) of lighting fire, is it not ? (64, 8.)
6. Rather (tant soit peu) ; but striking a flint with steel is not 'quick
work' {expéditij) either. (not... either = «^.../aj nonplus. — (64, 9.)
7. We must take the greatest precautions to guard against the outbreak
of fire {incendie, m.)