SPECIFIC GRAVITY AND DISPLACEMENT OF SOME SALINE SOLUTIONS. 37 



when floating at the 50-mm. mark in distilled water of 19 "50°, 23 "00°, and 26*00° C. 

 are given in Tables Ag, Ag, and A^ respectively. 



The mean of the values entered in line s of each of the Tables Aj, Ag, A3, and A4 is 

 accepted as the correct total weight of hydrometer No. 17 when floating at the 50-mm. 

 mark in distilled water at the temperatures 15'0°, 19'5°, 230°, and 26'0'' C. respectively ; 

 they are collected in Table B with the corresponding values for hydrometers 

 Nos. 21 and 3. 



[Tables. 



