PRHCTICAL ARBORICULTURE ag 
with alcohol, hence the everlasting character of catalpa wood under condi- 
tions which cause other timbers to decay quickly. 
The duration of telegraph poles may be greatly extended by dipping 
the lower end in a hot solution of asphaltum, allowing the wood to absorb a 
considerable quantity of the mineral. It is absolutely essential that the wood 
be well seasoned before applying the solution, otherwise the fermenting sap 
will cause a more rapid decay since moisture cannot escape. The poles should 
be coated two feet higher than the surface when the poles are set. 
DAVARP OAR. NEAR DALAIER. DARE, COLORADO. 
