DISEASES OF CATTLE. 57 



decree of exactness. From liis and other researches it is evident 

 that changes in the constitution of the milk are produced by so 

 slight a change from normality as a hypersernic (increase of the 

 quantity of blood) condition of the interstitial and subcutaneous tis- 

 sues of the udder. A comparison of such milk with normal, or, 

 when but one cistern is complicated, with milk from the other cis- 

 terns of the same udder, has shown that the solid elements are greatly 

 augmented at the expense of the fluid ; especially are the casein and 

 albumen augmented, while the normal milk contains more milk- 

 sugar, and the so-called "extractives" in greater quantity. The 

 inorganic elements are also considerably increased in the milk from 

 diseased udders. 



In other words, such milk assumes characters simulating those 

 of colostrum, containing the well-known colostrum bodies, having a 

 yellowish-white color, is viscid, and coagulates easily. In such a 

 secretion, Fiirstenberg found the results of chemical analysis to be 

 as follows : 



Water 81-789 



Solids 18-211 



Total 100-000 



The solid elements were : 



Fat 5 



Casein and albumen 8 



Milk-sugar and extractives 3 



Salts 1 



Total 18 



These 1*044: salts consisted of : 



Phosphoric salts and oxide of iron 



Carbonates of lime 



Chloride of sodium (cooking-salt) 



Soda 



Traces of sulphuric acid 



210 



887 

 070 

 044 



Total 



211 



384 

 108 

 003 

 549 

 000 



044 



From the non-diseased parts of the same udder the results of the 

 analysis were as follows : 



Water 88-583 



Solids 11 '417 



Total 100-000 



