xii INTERNAL SECRETION AND DUCTLESS GLANDS 227 



in various parts." With smaller doses (.3 g. of the fresh 

 gland) Oliver and Schafer found a similar paralysis, but 

 it came on more slowly. After half an hour the animal 

 appeared to be "nearly, if not quite, in a normal condition." 

 Internal Secretions as a Means of Functional Correla- 

 tion. — From what has been said it is evident that internal 

 secretions play an important role in securing the coordina- 

 tion of functions of the various organs of the body. They 

 act as regulative agents, making possible the partial control 

 of one organ by another independently of the central nervous 

 system. Organs through their internal secretions may act 

 and react upon each other, and in this way bring about 

 the harmonious functioning of the different parts which is 

 essential to the life of the whole. 



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Abelous et Billard. Recherches sur les fonctions du thymus chez 

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Abelous et Langlois. Note sur les fonctions des capsules surre- 

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