102 PLANT DISEASE 



and found that sheep grazing on land manured 

 with basic slag increased in weight faster 

 than sheep grazing on similar pasture manured 

 with phosphates, and slag contains about 18% 

 of iron. 



In conclusion, I can only reiterate what I 

 have already said : manure the land with iron, 

 (nothing has been done in this direction in 

 the history of agriculture in Great Britain, 

 or any other part of the world), phosphates and 

 potash, and I am sure the predisposition to 

 tuberculosis in dairy stock will be removed. 

 And there is no question that if you remove 

 bovine tuberculosis, you remove a big factor 

 in human tuberculosis, quite irrespective of the 

 question as to whether the bovine bacillus 

 will grow in the human being or not, but simply 

 from the fact that either milk or meat suitable 

 for the growth of this bacteria, if consumed 

 for any length of time by human beings, must 

 simply lower their blood and tissues to such a 

 level as will admit of the growth of the human 

 form of the bacillus. 



