The McCleery method of Billiard playing

Sir Astley Cooper, the celebrated English physician, has said: “We should all sleep more soundly if we made it a rule to play billiards an hour or two each evening before going to bed.”
Dr. Marcy, the well-known American physician says: “One of the pleasantest and easiest means of regaining and retaining health, is to introduce into private houses a billiard table, and to present it to the entire family, men women and children, as a means of daily exercise and recreation. The most indolent and stupid will, by practice soon acquire a fondness for the game, and the improvement in the sanitary condition of those who habitually indulge in it, will commend it in the strongest manner to the heads of families. We also advocate the game of billiards from a moral as well as sanitary point of view.