PRINCIPAL APPLE VAR1ETIKS. 



13 



supply a type of information the demand for which seems to be 

 increasing. 



In indicating where the more important apple-producing sections 

 are located, it is not possible to give the information for the different 

 States with a uniform degree of definiteness, because of the differ- 

 ences in the distribution of the orchards and also because of a lack 

 of sufficient data. In some parts of the country the apple-producing 

 areas are rather indefinite in their extent, with no well-defined bound- 

 aries; in others, as in some of the irrigated valleys of the West, 

 the areas are very definitely delimited. 



The locations of the more important areas of production, as out- 

 lined in the present connection, are indicated largely on the basis of 



Fig. 



10. — Outline map of the United States, showing the approximate distribution of 

 apple orchards of nonbearing age in 1910. Each dot represents 500 acres. 



information from leading fruit growers, officers of horticultural so- 

 cieties, experiment station officials, and others who by virtue of their 

 relation to the fruit interests in their respective States are especially 

 familiar with the sources of production. This information was sup- 

 plied in response to a circular letter sent from the Bureau of Plant 

 Industry. In most cases the varieties listed for planting in the 

 different centers or areas of production were named by the same 

 correspondents. The varieties in the various lists are named in 

 alphabetical order. The relative importance of most of the principal 

 varieties in each State is shown in figure 2 and Table III. It should 

 be stated further that in many instances counties not included in the 

 areas of commercial production are reported by the last census to 

 have a larger number of trees than other counties designated as 



