220 



EXPERIMENT STATION, 



[Jan. 



been studied and additional data as to variation in form and 

 size have been secured, and these are set forth in an earlier 

 portion of this paper. It cannot be grown to its full develop- 

 ment north of southern Pennsylvania, central Ohio and In- 

 diana, north central Illinois and central Iowa, although it is 

 often a profitable commercial variety further north than this. 

 It is, however, inferior in most respects to the variety grown 

 south of that line. It is apt to be hard and astringent and 

 poorly colored, and undersized unless grown under relatively 

 high cultural conditions. The map given in Fig. 14 shows the 



Fig. 14. 



distribution of this variety. This shows it extending farther 

 north than the map given in a previous report. It should be 

 borne in mind that the previous map shows the area over which 

 it is the leading commercial variety and the present map the 

 area where it may be said to rank as a valuable commercial sort. 

 SJiocHey. — Shockley is a variety belonging almost exclu- 

 sively to the southern belt. It flourishes in regions where the 

 summer heat is greater than that favorable to most commercial 

 varieties. It is recommended for cultivation in the hill and 

 pine belt regions of South Carolina, and west through northern 

 and central Alabama to northeastern Texas. Gould gives the 



