The internal secretions and the principles of medicine . on of the Pituitary BodyOF A Human Embryo of Four Months. (Ediiigcr.) Interpreted from my standpoint these are all very import-ant features of the question in point. The leucocytes, contain-ing as they do whatever they may have absorbed in the intes-tinal canal or in the blood, are distributed, we have seen,throughout the entire organism. What proportion of thesecells happens to penetrate into the pituitary to form the sup-posed secretion is, as it were, a sample of the food-elements andany noxious substance that they may contain, which
The internal secretions and the principles of medicine . on of the Pituitary BodyOF A Human Embryo of Four Months. (Ediiigcr.) Interpreted from my standpoint these are all very import-ant features of the question in point. The leucocytes, contain-ing as they do whatever they may have absorbed in the intes-tinal canal or in the blood, are distributed, we have seen,throughout the entire organism. What proportion of thesecells happens to penetrate into the pituitary to form the sup-posed secretion is, as it were, a sample of the food-elements andany noxious substance that they may contain, which are beingdistributed broadcast. The hlood as the bearer of leucocytes thusladen, fulfills the role that sea-water does in lower forms. In these lower organisms, however, we have seen that therespiratory fluid and the food materials it contains arebrought into contact with the center of their auto-protectivemechanism, their test-organ or osphradium. How is thecorresponding process carried on in the anterior pituitary ofthe higher animals, includimr man?. PRDMISCUDUS niSTRIHUTIDN DF CELLS IN THEANTERIDR PITUITARY, [ a, I,ar2B Epithelinld phagocytes, h, NEutrnphllB-nutritiDnal-lBUCDDytBSic, HasDptiilB iBUDDcytE. d, Capillaries, LEUCOCYTES AS DISTRIBUTORS OF POISONS AND REMEDIES. 1047 Between the anterior lobe and the partition separating itfrom the posterior lobe is a transverse space,«the para-nervousslit or pocket, which Haller, Parameschko, Cadiat and othersregarded as an excretory canal, but which in reality is closedon all sides. It varies greatly in shape: it may be broken upby projections that unite the two surfaces, or form a relativelyspacious vesicle; it may also appear closed, the two walls beingalmost in contact even though their cellular elements are differ-ent in nature. Thus while the surface forming part of the an-terior lobe is lined with ciliated epithelium, that of the par-tition proper is composed of the sensory epithelium which, asshown below, forms t
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