DAVIS. — A PQ PLANE FOR THERMODYNAMIC CYCLIC ANALYSIS. 055 



any given case, and probably also to a general theory, so that a prolon- 

 gation of the present investigation is unnecessary. It is hoped that 

 these methods will be found applicable to a great variety of problems in 

 cyclic analysif, and that they will help in the development of this 

 interesting subject. 



