XL 
THE CULT OF JOY 
N these days of heavy hearts(1917) the publica- 
tion of a book on joy does not seem very appro- 
priate, yet what Professor Dearborn, of Cambridge, 
Mass., has to tell us makes for the better ordering 
of life. For he is one of those who have followed 
the famous physiologist of Petrograd, Professor 
Ivan Petrovich Pavlov, in investigating the in- 
fluence of the emotions on the health of the body. 
That a good circulation is associated with cheerful- 
ness is a familiar fact—and how this organic jaunti- 
ness sometimes jars on the tired and sorrowful! 
But there is the converse proposition that cheer- 
fulness makes for health. Organic harmony and 
vigor are correlated with gladness; the problem 
is whether the joy of the inner life has any real 
effect on the organism’s working power and staying 
power. A merry heart goes all the day, a sad one 
tires in a mile; but was not the merriness the 
symptom of a constitutional indefatigability, and 
the sadness a sign of fatigue-toxins already elabor- 
ated? Dr. Dearborn seeks to prove that joy is a 
vera causa, and it is interesting to inquire how he 
does so. Needless to say, if joy be regarded as a 
mere luminescence or epiphenomenon of the lively 
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