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POPULAR SCIENCE MONTHLY. 



4. What proportion of the arable land above measured should you 

 consider suitable to the production of wheat under general conditions 

 such as are given in the text, say, a stable price of one dollar per bushel 

 in London? 



Answer square miles. 



5. To what extent, in your judgment, is wheat becoming the cash 

 or surplus crop of a varied system of agriculture as distinct from the 

 methods which prevail in the opening of new lands of cropping with 

 wheat for a term of vears ? 



"What further remarks can you add which will enable me to eluci- 

 date this case, to complete the article and to convey a true impression 

 of the facts to English readers? 



Your assistance in this matter will be gratefully received. 



Respectfully submitted, 



Edward Atkinson. 



To this circular I received twenty-four detailed replies, containing 

 statistics mostly very complete ; also many suggestive letters, in every 

 case giving full support to the general views which I had submitted 

 in the proof sheets. It has been impossible for me to give individual 

 credit within the limits of a magazine article to the gentlemen who 

 have so fully supplied the data. Space will only permit me to submit 

 a digest of the more important facts in a table derived from these 

 replies : 



