THE WORKS OF JOHN PLAYFAIR, ESQ. LATE PROFESSOR OF NATURAL PHILOSOPHY IN THE UNIVERSITY OF EDINBURGH, PRESIDENT OF THE ASTRONOMICAL INSTITUTION OF EDINBURGH, FELLOW OF THE ROYAL SOCIETY OF LONDON, SECRETARY OF THE ROYAL SOCIETY OF EDINBurgh, AND HONORARY MEMBER OF THE ROYAL MEDICAL SOCIETY OF EDINBURGH. WITH A MEMOIR OF THE AUTHOR. VOL. IV. EDINBURGH: PRINTED FOR ARCHIBALD CONSTABLE & CO. EDINBURGH, AND HURST, ROBINSON, AND CO. LONDON. 1822. |