1877.] 151 
[Fraley. 
of Chemistry applied to Agriculture and the useful 
Arts, in a Department of the University of Pennsylva- 
nia, established by the Trustees, to meet what was 
then a matter of great necessity, and the results 
of which as we shall see hereafter were very important 
to the City of Philadelphia. In his attendance upon 
the lectures and other instruction of Professor Keating, 
he added greatly to his stock of knowledge, and he was 
therefore well fitted to begin the study of Agriculture. 
He was placed under the charge of the late Isaac 
Price, of Chester County, and spent over a year in his 
family and under his instruction, becoming well 
grounded in all of the details of farming, and doing 
with his own hands every kind of farm labor. He 
subsequently entered the family of the late James 
Worth, of Bucks County, as pupil and friend, and with 
him completed his education as an Agriculturist. 
Shortly after attaining his majority, a farm in Chelten- 
ham Township, Montgomery County, was purchased 
for him by his father, and he prepared to enter on the 
real business of life. In May, 1827, he married Miss 
Letitia L. Massey, daughter of Charles Massey, with 
whom he lived happily for almost fifty years. The 
issue of this marriage was one son and two daughters; 
the daughters died in early childhood. The son, Dr. 
Charles M. Cresson, is still living, and is an esteemed 
and useful member of our Society. Thus settled on 
his farm, and ardently attached to Agricultural pursuits, 
he went to work manfully to make his business a suc- 
