A STUDY OF THE STREET TREES OF LINCOLN. 

 T. B. Nichols '13. 



Considerable interest has been aroused recently throughout 

 the country in what has been called "city forestry." While 

 not strictly forestry, and more within the province of arbor- 

 culture, city forestry is becoming more important each year. 

 The present study was undertaken to learn the factors affecting 

 the growth and condition of street trees in Lincoln, Nebraska. 

 The data and observations contained in this article were col- 

 lected by field work in different parts of the city and it is hoped 

 that they may be of some benefit to the owners of street trees in 

 Lincoln and elsewhere. Considerable credit should be given 

 W. A. Rockie '14 for his assistance in this work. 



The trees were examined from almost every view-point,, 

 and the injuries done by man, fungi, insects, and the elements 

 were carefully studied. The trees between the sidewalk and the 

 street and those within ten feet of the sidewalk on the premises 

 of the owner were the only ones considered in this survey. 



Before taking the actual survey data, city maps were studied, 

 typical conditions noted, and type localities selected which would, 

 as nearly as possible, represent the average conditions found 

 throughout the city. These selected type plots are located as 

 follows : 



1. R street from 31st to 32d; 



2. S street from 31st to 33d; 



3. 26th street from L to O ; 



4. D street from llth to 15th; 



5. R street from 14th to 16th. 



It may seem that the first and second localities are rather 

 close together, but the reason for such a choice is that they are 



