ON THE SPECIFIC HEAT OF WATER. 239 



Mechanical Methods. C. 



JOULB 4'173 at 16'5 



ROWLAND . 4'187 15 



REYNOLDS and MOORBY .... 4'183 15 



Electrical Methods, C. 



GRIFFITHS 4'193 at 15 



MICULESCU 4'185 11 '5 



SCHUSTER and GANNON 4'193 15 



CALLENDAR and BARNES .... 4'184 15 



JAGER and STEIN WEHR 4 '19 15 



The different absolute values are set out in fig. 11. 



Looking first at the general course of the curves as shown in fig. 10, we note that 

 our curve is in comparatively close accord with the others, whilst BARNES' curve 



+22 



differs from them all in being flatter and with the minimum carried further to the 

 right. The minima, according to different observers, are as follows : 



C. C. 



BARTOLI and STRACCIATI . . 20 ROWLAND 30 



LUDIN 25 BARNES 38 



BOUSFIELD 25 



