One morning, after the downfall of all his huge chimerical schemes, Guillaume, remembering the terrible explosive which he had discovered and hitherto failed to utilise, had suddenly thought of employing it as a motive force, in the place of petroleum, in the motor which his eldest son had so long been trying to construct for the Grandidier works. So he had set to work with Thomas, devising a new mechanism, encountering endless difficulties, and labouring for a whole year before reaching success. But now the father and son had accomplished their task; the marvel was created, and stood there riveted to an oak stand, and ready to work as soon as its final toilet should have been performed.
Amidst all the changes which had occurred, Mere-Grand, in spite of her great age, continued exercising
