FIFTY-THIRD ANNUAL CONVENTION 13 



coveries by Dr. McCullom, as well as other scientists, that 

 the vitimins so essential to the proper nourishment and de- 

 velopment of the growing child are found in milk and dairy 

 products only. These facts are now taught the mothers in 

 the homes as well as to our high school pupils the result 

 of which has been that the demand for milk and dairy prod- 

 ucts of all kinds has increased much faster than the increase 

 in production of dairy products. 



These facts furnish a firm foundation for the faith of 

 the dairy farmer in the permanent character of his industry 

 not only so far as soil fertility is concerned but for a re- 

 munerative market for his product as well. Because of 

 better market for dairy products the dairy farmer has not 

 suffered nearly as much financial loss in the depression 

 through which we are now passing as has the grain farmer. 

 There has been no surplus of dairy products in this country. 

 The demand has always equalled the supply and with the 

 educational campaign now conducted all over this land 

 relative to the necessity of dairy products in the diet of 

 growing children as well as grown up people it is going to be 

 a long time before the day comes when we will have a sur- 

 plus. 



It is a well established fact that it is possible to main- 

 tain soil fertility where grain crops are sold from the farm 

 provided as much fertility is bought in the form of commer- 

 cial fertilizer or grown with legumes as is removed by the 

 crops. This, however, is seldom if ever done. So far, in 

 our history, grain selling has meant selling soil fertility from 

 our farms that had been stored up in the past ages. On 

 the other hand wherever intensive dairy farming has been 

 practiced for some time soil fertility has not only been main- 

 tained but has been increased. This is explained by the 

 fact that for every ton of corn sold from the farm $8.38 

 worth of fertility is removed ; For every ton of clover or 

 alfalfa hay that is sold nearly $11.00 worth of fertility is 

 removed. In a ton of wheat $9.33 is removed. A ton of 

 wheat bran removes $15.28 worth of fertility; a ton of 

 'linseed meal $26.20 and a ton of cotton seed meal removes 

 nearly $31.00 worth of fertility. 



