Many able Gardeners and Husbandmen are yet Ignorant of the Reason of their Calling as most Artificers are of the Reason of their own Rules that govern their excellent Workmanship. But a Naturalist and Mechanick of this sort is Master of the Reason of both, and might be of the Practice too, if his Industry kept pace with his Speculation which were every commendable and without which he cannot be said to be a complete Naturalist or Mechanick.