1 ■ 



I 



PHILOSOPHICAL ^ ^f^ 



TRANSACTIONS 



OF THE 



ROYAL SOCIETY 



OF 



LONDON. 



FOR THE YEAR MDCCCXXXVIII. 



PART I. 



LONDON: 



PRINTED BY RICHARD AND JOHN E. TAYLOR, RED LION COURT, FLEET STREET. 



MDCCCXXXVIII. 



