131 THE POPULAR SCIENCE MONTHLY 
while all received their higher training, especially in the languages, 
from their father. The boys aided in the farming operations and Theo- 
dore early manifested a marked interest in the natural sciences, and es- 
pecially in botany; in which, however, his father could not help him. 
He soon found an enthusiastic helper in his younger brother Eugene, 
and together they made extensive collections of the native plants and in- 
sects of the vicinity. Dr. George Engelmann, a second cousin, greatly 
assisted the boys in their botanical studies. 
Karly in 1847 Theodore went to Europe and entered the University 
of Heidelberg as a student of medicine. Henle, Chelius and Hasse 
then made Heidelberg the most notable center for medical study outside 
of Vienna, while Bischoff represented botany. Hilgard at once began 
to make what subsequently became a very complete collection of the 
flora of central Europe. The revolutionary agitation of 1848 some- 
what disturbed the regularity of the 
course of study, but no actual in- 
terruption occurred until, in the 
spring of 1849, active revolutionary 
movements took place in Baden 
itself. Theodore then (with his 
brother Eugene, who had meantime 
joined him) went to Ziirich, and 
there passed three semesters, study- 
ing especially microscopy under 
Naegeli, and physiology under Lud- 
wig, besides attending the natural 
history lectures of Oken. During 
this time the brothers made ex- 
tended excursions on foot through 
s : : “e Switzerland and collected the Al- 
Fig. 12. Dr. Tsropore C. HiLGarD; by pine flora. In 1851 Theodore went 
courtesy of Dr. Eugene Hilgard. to Vienna to study, where were 
then such medical celebrities as 
as Rokitansky, Oppolzer, Bednar and Hebra. After nearly two semes- 
ters, during which he gave much time to botanical study in the great 
Endlicher collection, he was obliged to go to Malaga to bring back 
his widowed sister. While there he made an extensive collection of 
Mediterranean plants which greatly interested him. On his returD 
he went to Wiirzburg, where he graduated in June, 1852, summa cum 
laude, as doctor in medicine, surgery and obstetrics. He then went 
to Berlin to study ophthalmology with Graefe, as well as surgery- 
In the summer of 1853 he returned to America, taking a position as 
ship physician on an emigrant vessel, on which he experienced a0 
epidemic of cholera. . 
