would have to be filled two or three feet in depth above its 

 present elevation and drained somewhat in order to provide 

 the condition suitable for growing the floor-cover vegetation 

 mentioned in the foregoing. Quite likely it would be found ad- 

 visable to deepen and otherwise to improve the soil conditions 

 on the slopes by adding and incorporating leaf-mold, swamp 

 muck, and the like, and, perhaps, some of the prevalent friable 

 soil native to the region. Here and there a tree might have to 

 be cut and the existing tree growth otherwise manipulated in 

 order to regulate, to as close a nicety as possible, the proportion 

 of light and shade, a factor to which some of the Ericaceae are 

 more sensitive and responsive than the common run of plants. 

 Other constructive work would be that described and implied 

 in the body of our Report. 



The area under consideration comprises about ten acres, but 

 it is quite possible that it might be increased to fifteen acres 

 should the growth of the collection of plants make this necessary 

 or desirable. 



[46] 



