Fraley.] 158 [Oct. 19, 
His plans for the improvement of the Park were 
simple but comprehensive. He seized upon the natural 
features of the land and the presence of its ancient 
forest trees to lay out roads and pathways, that should 
traverse attractive and beautiful spaces and present to 
the eyes of the visitors resting places of a graceful and 
attractive character. 
To him the arrangement and embellishment of the 
Park was a labor of love, and he still worked for it 
when unable to leave his house and bed, while suffer- 
ing from acute disease. 
He had the wide area of the Park mapped, as it were, 
upon his brain, and his directions to his assistants for 
the prosecution of their work were as clearly given as 
if he were standing by them in the field. But he 
yielded at last to the necessity of parting from a work 
calling for such continual mental labor, and he resigned 
at the close of the year 1875. 
In the year 1839, he was elected a member of the 
American Philosophical Society, and the proceedings 
contain many evidences of his success as an original 
investigator and careful student of science. 
He was elected one of its Vice-Presidents in 1857, and 
by continued re-elections he became the Senior Vice- 
President, and held that office when death terminated 
his membership with us. 
He visited Europe once on professional business, 
and twice for medical advice, and during these visits 
became acquainted with the prominent scientists of 
