For the wind being brisk, carried away the little machine and passenger in it with such rapidity, that myself as well as the nurse, who almost swooned away, was in no small terror.
I once made an experiment of this kind on a child's chair, by doing some things to it, and adding a sail, which succeeded beyond expectation, but with an un foreseen circumstance that was very near giving me great cause to regret my mechanism.  For the wind being brisk, carried away the little machine and passenger in it with such rapidity, that myself as well as the nurse, who almost swooned away, was in no small terror.  There was, indeed, a precipice before it, which I thought at too great a distance for any danger.