74 



THE NATURE AND 



[SECT. n. 



EXPERIMENTS ON THE FORCE OF THE VAPOUR OF ALCOHOL. 



The specific gravity of the alcohol used by Dr. Ure was -813, and its boiling 

 point 173. l The properties of the alcohol employed by Mr. Watt are not given ; 2 

 his experiments are very irregular. Dr. Robison's boiled at 173 ; 3 and above 100 

 agree well with later observations. Mr. Dalton's appears to have boiled at 175;* 



i Phil. Trans. 1818. 



3 Robison's Mech. Phil. vol. ii. p. 35. 



s Robison's Mech. Phil. vol. ii. p. 33. 

 4 Annals of Philo. 1820. vol. xv. p. 130. 



