DISEASES OF CATTLE. 57 



deirree of exactness. From his and other researches it is evident 

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

 sHght a change from normality as a hypentmic (increase of the 

 qnantity 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 • VS9 



Solids 18-211 



Total lOUOOO 



The solid elements were : 



Fat 5-210 



Casein and albumen 8 • 887 



Milk-sugar and extractives 3 • 070 



Salts. 1-044 



Total 18 211 



These 1-044 salts consisted of : 



Phosphoric salts and oxide of iron • 384 



Carbonates of lime O'lOS 



Chloride of sodium (cooking-salt) 003 



Soda 549 



Traces of sulphuric acid - 000 



Total 1 044 



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

 analysis were as follows : 



Water 88-583 



Solids 11-417 



Total 100000 



