130 THE BOTANISTS OF PHILADELPHIA. 



The results of his work on the fungi were communicated to 

 the world through the publications of the Society of 

 Naturalists at Leipsic, in 1818. His friend, Dr. D. F. 

 Schwaegrichen, attended to the publication, and the title it 

 bore is as follows : " Synopsis Fungorum Carolinse Superioris 

 Secundum Observationes " Ludovici Davidis de Schweinitz. 



In this year he was called to a meeting of his brethren 

 at Herrnhut, and on his way there he visited England, 

 France and Holland. At these places he visited learned 

 men, and established correspondences that were of great 

 advantage to him subsequently. Some time after his return 

 in 1821, he published a pamphlet containing descriptions 

 of seventy-eight hepaticse.* In the same year he sent to 

 Silliman's Journal (V, p. 48 (1821) pp. 34), a monograph on 

 the genus Viola. At the end of this year he was located in 

 his native village of Bethlehem, Pa., both to continue his 

 church duties, and to take charge of the institution for the 

 education of females. 



His herbarium was, in the meantime, rapidly increasing, 

 his correspondence widening, and the value of his work was 

 appreciated ; this resulted in his election to several societies 

 of natural history in America and Europe. In 1823 he 

 worked up the botanical collections of Say,t in Long's 

 expedition, though he did this with great reluctance, 

 regretting the absence of Nuttall, who had previously 

 agreed to undertake the task. Near the close of this year 



*1821. De Schweinitz, Specimen Florce Americce Septentrionalis Cryplogamicce, 

 sisiens Museos hepalicos hucusque in America septentrionali observatos. Raleigh. Octavo, 

 27 pp. 



1 1824. A Catalogue of Plants Collected in the North Western Territory by 

 Mr. Thomas tSay, in the year 1823, in Major Stephen H. Long Expedition to the 

 Source of St. Peter's River. Philadelphia. Octavo. Vol. II of the narrative by 

 W. H. Keating, pp. 379-480. 



