266 



The Principles of Fruit-growing. 



grow to very large size, 40 to 45 feet is none too far apart for 

 permanent trees. The places for the temporary trees or, 'fillers,' 

 are designated by the letter F. The fillers reduce the distance 

 between trees to one rod, or 16X feet, except where the alleys 

 occur, which are 28% feet wide. The fillers should be of early- 



bearing kinds, such as Wagener, Missouri or Wealthy, which 

 will usually pay the cost of the entire orchard within the first 

 ten years. In the middle section of Fig. 33 are 104 trees per 

 acre, in which all the intermediate rows are left out, the fillers 

 only equaling the permanent trees. These are preferably in 

 the rows running north and south, that the trees may in some 



