TRANSACTIONS 



OF THE 



ASIATIC SOCIETY. 



I. 



An account of Experimcjits wade in the MrsoRi. 

 Country, in the year 1804, to investigate tlte 

 effects of Terrestrial Refraction. 



BY LIEUTENANT JOHN WARREN, 

 Of H. M. 33rf Regiment ofFooL 



INTRODUCTION. 



JN oTwiTHSTANDiNG the various theories which 

 have been advanced, at different times, to account 

 for the effects of refraction*; and the numerous ex- 

 periments which have been made by the most eminent 

 philosophers of our times, with a view to discover 

 some law by which its effects might be reduced to 

 certain narrow limits, applicable to practice, nothing 

 sufficiently satisfactory has yet occurred to set the 

 question finally to rest. 



The late Genaral Roy was the first among us, 

 who availed himself of the favorable opportunity 

 which his survey presented, to pay some minute at- 



* Particularly by De Cartes, Leibnitz, the two Bernouil- 

 Lis, and lastly by SiR Isaac Newton, whose liypothesis, grountU 

 ed on the laws of attraction, now generally obtains among physical 

 writers. 



Vol. IX. B 



