Table 226. 



DYNAMICAL EQUIVALENT OF THE THERMAL UNIT. 



Rowland in his paper quoted in Table 227 has given an el.iborate discussion of Joule's determinations and the cor- 

 rections required to reduce them ti> lenipi-raturcs as measured by the air ihcrmumctcr. The followinn table con- 

 tains the results obtained, togellicr with the corrc&|ioiulin,i; results obtained in Rowland's own experiments. The 

 variation for change of temperature in Rowland's result is due to the variation with temperature of the specific heat 

 of water. 



Smithsonian Tables. 



219 



