60 PRACTICAL ARBORICULTURE 
couragement to the work of the International Society of Arboriculture, as by 
this means a timber supply may be secured for all time. 
Upon any good farm land in the middle states, the Catalpa speciosa may 
be grown in sixteen years to a size suitable for telegraph poles, and for the 
largest size in twenty years. 
Four or five times as many can be grown on an acre, systematically plant- 
ed, as are secured in the northern swamps. 5 
They may be grown near the points where they are to be used, and thus 
avoid excessive transportation, and when once placed in position on the line 
require to be renewed but twice in a century. 
It will cost to produce such poles of catalpa less than $1 each, an invest- 
ment which should attract the attention of business men as safe and profitable. 
In this connection I investigated the juniper poles of Alabama, recently, and 
found this southern juniper to be of quite rapid growth. It is produced, like the 
cypress, in swamp regions, yet grows well on dry lands, although confined to 
semi-tropic regions. 
Poles which I found on track of L. & N. Railway Company ranged from 40 
to 60 feet long, 10 to 16 inches diameter at bottom, 8 to 9 inches at top, had grown 
in thirty to forty vears. 
It seems as though this swamp juniper might be very advantageously cul- 
tivated. In appearance the tree greatly resembles red cedar. 
