THE LACTEAL GLANDS. 279 



colostrum, seem to be morphologically quite identical, such 

 a separation of the two processes can no longer be defended ; 

 and, in cases of repeated parturition, the formation of colostrum 

 can scarcely be viewed in any other light than as the intro- 

 duction to that of the milk. On the other hand, I am quite of 

 opinion, that the production of the first colostrum is connected 

 with the excessive development of the lacteal gland coincident 

 with the first pregnancy; and that it is in part derived from 

 the internal cells of the originally solid rudiments which are 

 removed, during the formation of the ultimate terminations of 

 the gland. I explain, in a similar way, the formation of milk 

 in the new-born child; in which case, surely, no true secretion 

 can be thought of. 



Donne, the discoverer of the colostrum-corpuscles, states, that 

 in inflammations and tumefactions of the breast of nursing 

 women, the milk acquires the nature of colostrum ; which is, 

 however, denied by d'Outrepont and Munz ('Neue Zeitschrift 

 fur Geburtskunde/ Bd. 10); in the same way, according to 

 Lehmann ('Phys. Chemie/ II, 327, [transl. II, p. 334]) it 

 would appear, that, in acute diseases generally, and also in 

 menstruation (Donne, d'Outrepont), the milk exhibits colos- 

 trum-corpuscles, which, when they exist in larger quantity, are 

 regarded by Donne as indicative of bad milk. In "hoof-mur- 

 rain" (' Klauenseuche') Herberger and Donne found the milk to 

 contain a good deal of colostrum. In sour milk the casein 

 coagulates into granules, and the milk-globules gradually run 

 together into larger drops. Blue and yellow milk, according 

 to Fuchs (vid. Scherer, art. 'Milk' in 'Handw. d. Phys/, II, 

 p. 470) contains colourless infusoria, which he terms vibrio 

 cyanogenus and xanthogenus, which, when transferred to healthy 

 milk also colour it; a fact which, as regards blue milk, is 

 confirmed by Lehmann (1. c, p. 335, Eng. transl.) ; according 

 to Bailleul ('Comptes rend/, t. 17, p. 1138), however, and 

 Lehmann [once only], a filamentary fungus is also found in 

 that sort of milk. Red milk has also been noticed by C. Nageli, 

 and vegetable, pi'otococcus-like growths found in it. 



For the investigation of the mammary glands, those of 

 pregnant or nursing women, or of women who have borne 

 children, should be preferably selected, because it is only in 

 such that the gland- vesicles are well developed. When the 



