I 
In making this study the writer has endeavored to 
ascertain in which countries and regions the apple is 
being grown, both commercially and for home use, and, 
as far as possible, trace the development of the apple 
industry in those regions from the early plantings to 
the present date# 
Very definite limitations were encountered in at¬ 
tempting to correlate the data on yields with prices, 
or the influence of prices upon apple plantings through¬ 
out the United States. That some relation exists there 
is little doubt, however, in most cases the data does 
not furnish conclusive evidence to justify positive 
statements concerning the relation of one factor to 
another. On the other hand, in comparing the receipts 
of apples on the New York City and Boston markets with 
prices for a period of years it was found that a reason¬ 
ably accurate correlation prevailed. 
Commercial apple plantings increased very rapidly 
in regions having special climatic conditions favorable 
to fruit growing, in fact almost simultaneously,with the 
improvement in transportation facilities between these 
regions and the large centers of population. 
Control of moisture conditions through irrigation 
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