198 PRACTICAL ARBORICULTURE 
The unfortunate mistake of the Pennsylvania Railway Company in planting 
200,000 bignonioides and hybrid catalpa trees in Indiana, twenty years ago, in a 
dense sod along the track, in totally neglecting these trees for twenty years, and 
permitting them to be mutilated by telegraph linemen, any one of which causes 
would prove fatal to the success of the experiment, is made the basis of a covert 
attack upon the Catalpa speciosa, and from the prominence of the paper, is cal- 
culated to do great harm by discouraging the planting of these trees by others. 
#& GROUP OF CATALPA SPECIOSA TREES 100 FEET HIGH 
The hundred thousand people from every portion of the world who saw the 
catalpa exhibit at the St. Louis Exposition, saw many ties which had been in 
constant service in several great railway tracks for thirty-two years, ten years of 
which were under heavy traffic, supporting ninety-pound rails, and vet without 
tie-plates. 
The rapidity of growth of Catalpa speciosa has been abundantly proven. We 
instance one tree, which was planted in a dooryard at Cambridge City, Indiana, in 
