40 
value to forest interests. Careful statistics and records are to 
e kept, placing at the disposal of all, through publications, 
reliable facts to se in reforestation. Mr. Dow perhaps ex- 
presses this best when he says: ‘‘ The growth of the trees will 
be measured tine their liability to disease will be noted 
and their capacity for seed bearing, their behavior in pure 
stands and in mixture, their influence upon the forest floor, and 
Overton W. Price, of Washington, D. C., vice-president of the 
National Conservation Association, and for ten years associate 
forester of the United States. 
And all of this has been made possible by the generosity and 
public spirit of one man, the late Hon. William Pryor Letch- 
worth, who as early as 1859 began the acquisition of land in the 
vicinity of the Upper Falls of the Genesee. His purchases con- 
tinued until he secured control of both sides of the Genesee for 
a distance of about three miles. This tract, which includes the 
three great falls and the wonderful Portage Gorge, and has been 
greatly improved during his ownership, was presented by Mr. 
Letchworth in 1907 to the state of New York, he retaining only 
a life-tenancy in the estate, which was terminated at his death 
on December 1, 1910. A condition of the gift was that the 
permanent custody of the property should be with the American 
Scenic and Historic Preservation Society, which is now directing 
its development. 
. Letchworth was ever desirous of being of service to his 
fellow man, and to make'the park of greater educational value, 
desired to have the trees properly labeled. In the fall of 1907 
the Director of the New York Botanical Garden was consulted 
in this matter, with the result that the writer was selected to 
make a study of the arboreal vegetation of the tract. The form 
of tree label used in the New York Botanical Garden was ap- 
proved by Mr. Letchworth, and in the following year a second 
visit was made to superintend the affixing of a number of 
these labels. These visits were fully enjoyed, for Mr, Letchworth 
