RECREATIONS, In which the PRINCIPLES of NUM BERS AND NATURAL PHILOSOPHY Are clearly and copiously elucidated, BY A SERIES OF EASY, ENTERTAINING, INTERESTING EXPERIMENTS. Among which are All those commonly performed with the CARDS. By W. HOOPER, M. D. VOL. III. LONDON, Printed for L. DAVIS, Holborn; J. ROBSON, New Bond-street; TOR LIBE LIBRARY NEW-YORK. MDCCLXXIV. |