98 
was employed much of the time in work on the economic collec- 
tions, his early training as a pharmacist fitting him well for these 
duties. The University of Western Pennsylvania awarded him 
the ae degree of Doctor of Pharmacy on June 16, 1904. 
His account of the American Sennas, oe Cassia Medsgert, 
was published in December of that y 
Early in 1907, he was pee ey to visit the West Indian 
1908. In January, 1907, he was sent to northeastern Cuba, and 
for several months prosecuted botanical exploration in the prov- 
inces of Oriente and Camaguey, and returned to northern Oriente 
later in the year.} 
Museum work had proved unsuitable for Dr. Shafer’s health, 
and during this period he decided to relinquish it n his return 
om Cuba, in the spring of 1910, he proceeded to his home near 
Pittsburgh and occupied himself in gardeni florist, 
ut he greatly desired to continue tropical botanical exploration 
during the winter season, and this we were able to make possible 
for him from time to time. Late in 1911, we commissioned him 
for collecting again in Cuba, and he spent several months of that 
g in January, 1913, during whic we made 
collections o: , St. Jan, Tortola, Virgin Gorda, 
ada, Porto Rico, and Curacao.{__In the early part of 1914, 
we sent him to explore the Porto Rican island of Vieques, when he 
made the a coerce collection of - plants.** Later in 
I9r4 Porto Rico. tt 
* Torreya 4: 177- 
iT. 
: 81-88. 
t Jour. N. Y¥. Bot. Gard. 11: 147-159; 202-221; 12: 92-99. 
§ Jour. N. Y. Bot. Gard. 13: 136-147; 169-1 
4! 
s : 44-49. 
* Jour. N. Y. Bot. Gard. 14: 99-109. 
** Jour. N. Y. Bot. Gard. 15: 103-105. 
tf Jour. N. ¥Y. Bot. Gard. 16: 33-35. 
