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ROYAL SOCIETY OF CANADA 



heat in the two cases were exactly the same. Hence if " x " calories par 

 minute were communicated in the first case, and (" x^ ") per minute in the 

 second, the gas must have given up (x - x^) calories per minute. If 



therefore the rate of flow was " y " grams per minute, and the fall of 

 temperature " t°C " the value of the specific heat as given by this set of 

 readings was x - x^ 



E. Measurement of Specific Heat for Dry Air. 



A set of temperature, pressure, and calorimetric readings for dry 

 air is given in Table I, and curves illustrating them are shewn in Fig. 7. 



TABLE I. 



