HVDROSTATICAJL TABLES. 



153 



LECT. 

 V. 



62.5 pounds avoirdupoise. Therefore, since there are 

 1728 cubic inches in a cubic foot, a troy ounce of water 

 contains 1.8949 cubic inch ; and an avoirdupoise ounce 

 of water 1.72556 cubic inch. Consequently, if the num- 

 ber of cubic inches contained in any given cylinder, be 



