MODIFICATIONS OF MILK. 59 



suckling her sixth, child, which was a year and half old, and in 

 a dreadfully scrofulous state, exhibited no deviation from the 

 healthy secretion : it appeared rich, tasted and smelled like 

 healthy milk, and had an alkaline reaction, which it retained 

 for the space of six days. Its constituents, casein, sugar, and 

 butter, appeared normal, and there was no peculiarity in their 

 quantitative admixture. (See analysis 64, p. 51.) Hence, although 

 the woman was suffering from a malignant chronic disease, no 

 morbid change was observable in the milk. 



Donne 1 has frequently submitted the milk of syphilitic women 

 to microscopic examination, but never observed any deviations 

 from the normal appearance. 



Meggenhofen 2 found that the milk of a syphilitic woman 

 reddened tincture of litmus, and that it was coagulated by 

 protonitrate of mercury, basic acetate of lead, and infusion of 

 galls, but not by hydrochloric or acetic acid, protochloride of 

 tin, neutral acetate of lead, or alcohol of 0-83. 



Herberger 3 has analysed a specimen of diseased human milk ; 

 he found it composed of, water, 895 ; solid constituents, 105 ; 

 casein, 18'3 ; sugar, 26-9 ; butter, 23'3 ; chlorides of potassium 

 and sodium, lactate and phosphate of potash, and an inorganic 

 substance, insoluble in oil of turpentine, 41-6; organic matter 

 soluble in oil of turpentine, T6. The latter substance was a 

 yellow extract soluble in water and alcohol. The solution re- 

 duced the salts of gold, silver, and platinum, yielded no ammonia 

 by dry distillation, and was not precipitated by tannic acid. 



Deyeux 4 examined the milk of a woman who was liable to 

 frequent nervous attacks : he found that simultaneously with 

 these seizures, the milk became transparent and viscid, like 

 albumen, and did not reassume its normal condition for some 

 time. 



Other changes in the milk. 



Certain substances which are not included in the ordinary 

 constituents of the milk are sometimes detected in it, after having 

 been taken into the system, either as food or medicine. It is 



1 Op. cit. p. 52. a Dissert, inaug. etc. p. 16. 



3 Journal fur prakt. Chemie, vol. vi, p. 284. 



4 Crell's Chemische Annalen. vol. i, p. 369. 



