Note 138 — MEMOIRS OF THE LIFE OF DAVID RITTENHOUSE; ANTERIOR TO HIS SETTLEMENT IN PHILADELPHIA.
Reading edition
See A Compendious System of Natural Philosophy, &c. by J. Rowning, M. A. part iv. chap. 15.
Reading edition
See A Compendious System of Natural Philosophy, &c. by J. Rowning, M. A. part iv. chap. 15.