HOW GLANDS INFLUENCE THE NORMAL BODY 123 



lessness, and the delicate texture of the skin, as well as in the 

 clean-cut patterning of the features. Every gradient between 

 premature senility and sex inversion is encountered. 



The thymic face frequently stamps its possessor at sight. Its 

 owner has a smooth, soft skin, with little or no hair, and a dead 

 white or "peaches-and-cream" complexion. One wonders, when 

 unacquainted with the type, who the man's barber is, or where 

 he learned to shave himself so well. It may be curiously velvety 

 to the touch and swept by a faint sheen. Among children occur 

 the most exquisite samples of the kind designated as the angelic 

 child. The face is finely moulded and beautifully proportioned, 

 features artistically chiselled, eyes blue or brown with long 

 lashes, cheeks transparent with rapid, fleeting variations in color- 

 ing, thin lips, and oval chin. In the adult, the chin is receding, 

 and the mouth seems underdeveloped in one variety. 



The Teeth 



As closely connected with the internal secretions as are the 

 bones of the face and the skull are the teeth. Tooth formation 

 is essentially a modified bone formation. And as the bones of 

 the face are influenced, so are the teeth influenced. But as each 

 tooth is a miniature organ, inspectable by the eye as a unit, the 

 action of the ductless glands is more obviously reflected for the 

 observer to read. By their teeth shall ye know them. Upon the 

 whole history of the evolution of each tooth, in the growth of the 

 dental follicle and its walls, the fruition of the dentinal germ, 

 the making of the enamel organ, the dental pulp, the cementum 

 and the peridental membrane, the endocrines leave their mark. 



There are certain general statements about the teeth and the 

 internal secretions that can be made. The teeth of the thyroid 

 types are pearly, glistening, small and regular; in other words, 

 the teeth to which poets have devoted sonnets. The pituitary 

 types have teeth that are large and square and irregular, with 

 prominence of the middle incisors, and a marked separation or 

 crowding of them. The interstitial types have small irregular 

 upper teeth, with turned, stumpy or missing lateral incisors. 

 The thymus types have youthful, milky white teeth that are 

 thin and translucent, and scalloped or crescentic at the grinding 

 edge. The teeth of the adrenal type are all well-developed, tend 

 to have a yellowish color, with a reddish tinge to the grinding 

 surfaces. 



