Photograph by L. D. Cox. 



The Pin Oak Used as a Small Formal Street Tree for Poor Growing 



Conditions. 



A view of north Broadway showing the existing planting of a rather inter- 

 esting type; a double row of Pin Oaks in a central parking. If these trees are 

 to be maintained successfully they should be kept as at present of small size 

 and formal shape since the few feet of soil above the subway roof will not per- 

 mit a root system sufficient for large trees. To permit a greater use of the central 

 parkings they could be kept in alternate blocks of grass and gravel, the 

 gravel blocks to be provided with concrete seats. The existing planting should 

 be extended south to 135th Street. A lighter guard would be more attractive and 

 give ample protection. See Chapter IV for other planting types. 



