102 SALES OF FRUIT. 
judicious method of summer pruning (described on 
another page) should be instituted to change the 
habits of the trees. 
When the trees are ten years old the receipts 
should not be less than $400 per acre, and there will 
be a steady increase in the returns, under proper 
management, until the trees have been planted fifteen 
or sixteen years, when the receipts will be at least 
from. $600 to $800 per acre, and in many cases much 
larger. When choice pears command from $10 to 
$30 per barrel, as they have for the past three or 
four years, and this with a brisk market, it affords 
encouragement enough to induce horticulturists to 
make every effort to produce the best specimens of 
the varieties that the market demands. 
To give an account of the sales of fruit from our 
entire orchard would be unsatisfactory, on account 
of the difference in age of the trees, varying, as they 
do, from two to seventeen years. 
Ten years ago I selected a single row of thirty 
Duchesse d’Angouléme trees, planted ten feet apart 
in the row. Since then I have kept an accurate ac- 
count of the total sales of pears from these thirty 
trees. They are now eighteen years old, and they 
have produced seven crops in nine years. The trees 
are at present looking very well, and, if we can judge 
from appearances, they will continue to be produc- 
