LEWIS D. VON SCHWEINITZ. 
15 
species of Hepatic Mosses. This he produced as a mere 
specimen of the cryptogamic flora of North America, 
intended to excite a more general attention among our 
native botanists, to this undeservedly neglected branch 
cf natural history. In the same year he sent to Profes¬ 
sor Sillimairs Journal his Monography of the genus 
Viola, a valuable paper, often cited by European natu¬ 
ralists. 
• ■ 
At the close of this year his residence was trans- 
ferred to his native village of Bethlehem, where the 
secular office of general agent for his brethren was re¬ 
tained, the charge of superintending the institution for 
the education of females accepted, and the study of his 
dailing science unremittingly pursued. To range once 
more, in the vigour of his scientific maturity, over the 
same scenes in w hich had been sown the seeds of his use¬ 
fulness, and where had budded the promises of his early 
youth, imparted new energy and assiduity to his efforts. 
The beautiful slopes and valleys about Bethlehem and 
Nazareth, the romantic banks of the Delaware, and the 
precipitous rocks of the Lehigh, all yielded up to him 
a tribute of their hitherto unexplored treasures. The 
high estimation set upon his works by men of science, 
had procured his election as an honorary member in 
several societies devoted to natural history, both in 
Europe and America. His correspondence increased, 
and the formation of his herbarium advanced with great 
rapidity. 
In 1823 he was desired to examine and describe the 
plants collected by Mr. Say on the: expedition of Major 
