326 BULLETIN 226. 



no drumlins, the land is rolling. Table 33 shows the predominance of 

 east and west slopes in Walworth. 



TABLE 33. 

 Aspect. 



WALWORTH. 



Exposure. No. orchards. Acres. 



N 25 80 



N. E 27 88 



E 84 313^ 



S. E 19 74^ 



S 26 oi V-2 



S. W 20 74 



W 71 268 



N. W 15 61 



Level 45 129^4 



Rolling* 106 593 



*Most of those classed as rolling are a combination of east and west slopes. The 

 south part of the county has equally marked east and west slopes. The north part is 

 rolling. 



The effect of aspect on yields. The easterly slopes in Walworth gave 

 a larger yield each of the past four years than have the westerly slopes. 

 The difference in 1902 was 23 bushels per acre in favor of the 

 easterly slopes. In each of the other years the difference was greater. 

 The north part of the county does not show this marked uniform differ- 

 ence. The differences are greater than one would expect. In each of the 

 four years the northeast slopes have exceeded the northwest, the east have 

 exceeded the west ; the only exceptions are that in two cases the south- 

 east have failed to exceed the southwest. The four-year average in 

 Walworth was 43 bushels in favor of easterly slopes. 



It seems safe to conclude that the easterly slopes have marked advan- 

 tages over the westerly. This is due to the protection from the strong 

 west winds which do considerable damage at times. In the first part of 

 June, 1903, the leaves of the west rows in many orchards were badly 

 injured by winds. In many cases the foliage looked brown from the 

 distance. The outer part of most leaves was damaged and many entire 

 leaves were killed. The effects were still apparent in July. These strong 

 west winds also cause more loss from windfalls on the west sides of the 

 hills. The orchards on the level exposures give the least yields of all, 

 a difference that is probably due to poorer drainage. 



