vigorous variety of tree. Taken from our own nursery, and 
planted upon the streets, tne Commission has experienced a loss 
as low as one-tenth of one per cent; supposing such loss is one 
per cent on 4,000 trees. This would be a loss of 40 trees at $2.00 
each, which would be $80.00, which taken from $800.00, would 
leave $720.00 to the good for care of nursery, or enabling the 
Commission to care for 7,200 trees in the nursery for what would 
be a loss without nursery planting, to say nothing of the lessened 
cost of tree production at ten cents a tree per year, as compared 
with the cost of a dollar per tree for trees of the requisite street 
size. That there wili be some losses from accident, leaking gas, 
untoward conditions that could not be foreseen goes without say- 
ing, but to provide for such normal losses, the Commission keeps 
a few trees of each variety corresponding to the number planted 
each year growing in the nursery, so that in case of a loss of a 
tree of one, two, three or four years planting upon the streets, 
a tree of corresponding size is at hand to replace the ones lost 
upon the streets. 
In its work of tree preservation and cultivation the Commis- 
sion has sought the co-operation and hearty assistance of citi- 
zens. 
35 
