30 THE GLANDS REGULATING PERSONALITY 



courtiers and desperadoes of the most corrupt court in the most 

 corrupt city of the world, he went in for research. The high 

 power microscope that came into vogue when he was studying, 

 revealed vague wonders which he described in a monograph, "Re- 

 searches into the mucous tissues or cellular organs." But what 

 makes him interesting is a slender volume on the "Medical Analy- 

 sis of the Blood," published in the year of the American Declara- 

 tion of Independence. The sexual side of men and women aroused 

 Bordeu's most ardent enthusiasms. Starting with observations 

 on the characters of eunuchs and capons, as well as spayed female 

 animals, he formulated a conception of sexual secretions absorbed 

 into the blood, settling the male or female tint of the organism 

 and setting the seal upon the destiny of the individual. Thus 

 he must be donated the credit of anticipating the most modern 

 doctrine on the subject. 



The generation after him witnessed the triumph of the cell as 

 the recognized unit of structure of the tissues, the brick of the 

 organs. It was soon found that the cells of the more familiar 

 glands, like the sweat or tear glands, resembled the cells of the 

 more mysterious structures named the thyroid in the neck, or 

 adrenal in the abdomen, of which the function was unknown. 

 What had hitherto prevented classification of the latter as glands 

 was the fact that they possessed no visible pathways for the 

 removal of their secretion. So now they were set apart as the 

 ductless glands, the glands without ducts, as contrasted with the 

 glands normally equipped with ducts. Since, too, they were 

 observed to have an exceedingly rich supply of blood, the blood 

 presented itself as the only conceivable mode of egress for the 

 secretions packed within the cells. So they were also called the 

 blood or vascular glands. 



The names which became most popular were those which 

 represented a contrast of the glands with the ducts, conveying 

 their secretion to the exterior, as the glands of external 

 secretion and the glands without the ducts, the secretions 

 of which were kept within the body, absorbed by the blood 

 and lymph to be used by the other cells, as the glands of 

 internal SECRETION. How different these two classes of 

 glands are may be realized by imagining the existence of great 

 factories manufacturing food products, which would diffuse 

 through their walls into the atmosphere, to be absorbed by our 

 bodies. 



re are certain terms for the glands of internal secretion 



