Thus I have investigated this point to the best of my ability, though I have passed by matters therein that might be investigated, for fear of prolonging my observations beyond the limits of my letter.  But for your intelligence little seeds are enough.  “Give instruction,” it is said, “to a wise man, and he will be yet wiser.” Prov. ix. 9.  “If a skilful man hear a wise word he will commend it, and add unto it.” Ecclus. xx. 18.