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THE SPIRIT OF THE SOIL 



Machen, 48, Frances Road, Windsor, describing 

 accurately the nature of the soil, what has been 

 recently grown in it, and the crops on which it is 

 proposed to use humogen. A report should be sent 

 in at once if negative results are obtained. 



MODEL FORM FOR RECORDING RESULTS. 



HUMOGEN EXPERIMENTS. 



Date. . 



Crops. 



Quantity. 



How applied. 



Result : Weights 

 where possible. 



General Remarks. 



Name and Address of Experimenter. 



NOTE. Where possible, supply photographs. Address all 

 remarks to Mr. Alfred Machen, 48, Frances Road, Windsor. 



