AND ITS RELATION TO ANIMAL LIFE 9 1 



phosphate of potash, though this requires to be 

 very carefully administered in order to avoid 

 blood poisoning with carbonic acid, when a 

 low percentage of this acid is present. 



But in connexion with heartwater I believe 

 it to be such an insidious disease that only the 

 proteids will secure immunity, and the only 

 way to do this, at least in a practical way, 

 is to manure, say, two or three hundred acres 

 with iron, phosphates, and potash, fence it off 

 and graze a reasonable number of sheep on it, 

 and when their blood has become something like 

 normal, inject the requisite dose of this normal 

 blood, when defibrinated, into the sheep that 

 are to graze on infected country, at the same 

 time giving them perchloride of iron, nitrate of 

 potash or saltpetre, and bone meal mixed with 

 salt, so that they can take what they want 

 daily. If this does not keep them healthy, 

 then a considerable area of each farm will have 

 to be manured, and this is rather a large 

 order. 



But there is evidence to show that iron and 

 nitrates mixed with salt is distinctly beneficial, 

 as Mr. Walter Edmonds, of Kei Mouth, South 

 Africa, kept his sheep very healthy by giving 



