114 NATURE-STUDY REVIEW [14:3— Mar., 1918 



Conclusion: The large and abundant foliage of the linden 

 makes it a very good shade tree. It is a vigorous grower and often 

 lives to be quite old. The graceful outline of the linden makes 

 it attractive in winter as well as summer. The linden is at its 

 best before midsummer, for after that time the leaves grow coarse 

 turn brown and fall. It is free from insect pests here but in most 

 places it is so injured by them that it is considered undesirable. 



7. Catalpa Speciosa Ref. 6, pp. 447. 



Ref. 11, pp. 56. 

 Conclusion : It is one of the most rapid of the rapidly growing 

 trees. It has a rather compact head. It seems rather hardy, 

 and until recently it has been free from insect pests in Oxford. 

 This last year it has been bothered by the catalpa sphinx. These 

 in turn were so affected by parasites that the second generation 

 did little harm. 



8. Sycamore Ref. 5, pp. 265-268. 



Ref. 6, 279-281. 



Ref. 11, pp. 44-47. 

 Conclusion: The sycamore is hardy and bears transplanting. 

 The shade of the sycamore is never dense for its head lacks com- 

 pactness. The sycamore is not beautiful. It may be said to 

 be picturesque rather than beautiful. The sycamore is sometimes 

 subject to a disease that attacks the leaves, causing them to grow 

 brown and shrivel up. This seems true of some sycamores of 

 this community. Many of the sycamores grow too large for the 

 average lawn. 



9. White Ash Ref. 3, pp. 774-777. 



Ref. 6, pp. 432-433- 

 Ref. 11, pp. 49-5i- 

 Conclusion : The ash grows much more slowly than the catalpa, 

 poplar, locust, and soft maple, but it remains straight and sym- 

 metrical long after they are ragged. In the summer it is pleasing 

 to look at for its leaves are so attractive. While not compact 

 it furnishes abundant shade. It is not very clean in the fall for 

 it sheds its leaflets first and then its leaf stems. It is free from 

 insects in this community. 



10. Pine Ref. 3, pp. 789-794. 



Ref. 5, pp. 443-448. 

 Ref. 6, pp. 23-26. 



