l6 JOURNAL OF THE 



through the commentaries of the Society of Naturalists at Leipsic, 

 under the editorial care of his learned friend Dr. D. F. Schwaeg- 

 lichen, and under the title "Synopsis Fuogorum Carolinse Supe- 

 rioris." In the same year his duties required him to attend a meet- 

 ing of his religious brethren at Herrnhut. On his way thitlier he 

 visited England, France and Holland, where he established corres- 

 pondences which were afterwards of great service, when, on his 

 return, he began the formation of a regular herbarium. 



In 1821, Dr. Schweinitz published at Raleigh, N. C, a pamphlet 

 containing a description of seventy-eight 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 of natu- 

 ral history. In the same year he sent to Professor Silliman's Jour- 

 nal his monography of the genus Viola, a valuable paper, often 

 cited by European naturalists. 



At the close of this year his residence was transferred to his na- 

 tive village, Bethlehem, where the secular office of general agent 

 for his brethren was retained, the charge of superintending the in- 

 stitution for the education of females accepted, and the study of 

 his darling science unremittingly pursued. To range once more in 

 the vigor of his scientific maturity over the same scenes in which 

 had been sown the seeds of his usefulness, 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 precip- 

 itous 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 Eu- 

 rope and America. His correspondence increased and the forma- 

 tion of his herbarium advanced with great rapidity. 



In 1823 he was desired to examine and describe the plants col- 

 lected by Mr. Say, on the expedition of Major Long to the sources 

 of the St. Peter's river. Tiiis task he undertook with that diffidence 

 which signalized his real merit, expressing his regret that the un- 

 avoidable absence of Mr. Nuttali from the country should have pre- 

 vented him from executing this undertaking, agreeably to previous 

 arrangement, and passing on that gentleman a high and delicate 

 eulogium. 



Near the close of the same year he also communicated to the Ly-^ 

 ceum of Natural History, at New York, a valuable paper contain- 



