ipii.] IN RELATION TO THE EMOTIONS. 85 



tion of the genesis and the phenomena of fear is correct then it 

 would hold for the emotion of love. If fear is a phylogenetic 

 physical defense or escape but without resulting in muscular action 

 then love is a phylogenetic conjugation without physical action. 

 The quickened pulse, the leaping heart, the accelerated respiration, 

 the sighing, the glowing eye, the crimson cheek, and many other 

 phenomena are merely phylogenetic recapitulations of ancestral 

 acts. 



The thyroid gland is believed to participate in such physical 

 activities. Hence, it could well follow that the disappointed maiden 

 who is intensely integrated for a youth will at every thought of 

 him be subjected by phylogenetic association to a specific stimula- 

 tion analogous to that which attended the ancestral consummation. 

 Moreover, a happy marriage has many times been followed by a cure 

 of the exophthalmic goiter which appeared in the wake of such an 

 experience. The victims of Graves' Disease present a counterpart 

 of emotional exhaustion. The emotions in Graves' Disease are ab- 

 normally acute as illustrated by personal observation of death of a 

 subject of this disease from fear alone. Whatever the exciting 

 cause of this disease the symptoms of Graves' Disease are the same; 

 just as in fear the phenomena are the same whatever the exciting 

 cause. In Graves' Disease as illustrated by the photographs the 

 resemblance is close to that of fear. The following phenomena fear 

 and Graves' Disease have in common : increased heart beat, in- 

 creased respiration, rising temperature, muscular tremors, protrud- 

 ing eyes, loss in weight; Cannon has found an increased amount of 

 adrenalin in the blood in fear and Frankel in Graves' Disease; 

 increased blood pressure ; muscular weakness ; digestive disturbances ; 

 impaired nervous control ; hypersusceptibility to stimuli ; in pro- 

 tracted intense fear the brain cells show marked physical changes; 

 in Graves' Disease analogous changes are seen. In Graves' Dis- 

 ease there seems to be a composite picture of an intense expression 

 of the great primitive emotions. If Graves' Disease is a disease 

 of the great primitive emotions or rather of the whole motor 

 mechanism how is the constant flow of stimulation of this compli- 

 cated mechanism supplied? It would seem that at some period 



PROC. AMER. PHIL. SOC. LI. 204 C, PRINTED MAY 22, I912. 



