24 THE BOTANISTS OF PHILADELPHIA. 



environs of Paris and presented by Nicholas S. Parmentier, 

 and still in excellent preservation. During the years which 

 followed, this little nucleus received constant accretions from 

 the working botanists of the day, and the names of Collins, 

 Elliott, Pursh, Baldwin, LeConte, Conrad, Nuttall, Torrey 

 and Pickering are inscribed on many of the early tickets of 

 the Herbarium. 



In 1834 the Academy received the bequest of the col- 

 lections made by Rev. Lewis David von Schweinitz during 

 a period of forty years. Most of the northern species were 

 collected by himself, but many came from Dr. Torrey, 

 Major Le Conte, Rev. Mr. Dencke, and other correspondents. 

 The European species were contributed by Weldon, Bentham, 

 Brongniart, Schwaegrichen, Steudel and Zeyher. The 

 Siberian plants were furnished by Ledebour, and those of 

 India by Wallich and Steinhauer. Many Chinese species 

 were collected by Mr. James Read, and from the Arctic 

 regions were plants collected by the navigator Parry, and 

 received through Sir William Hooker; while from South 

 America were rich collections made by von Martins, Huffel, 

 Hering and Baldwin. Perhaps the most valuable portion 

 of the bequest consisted of the extensive series of the lower 

 cryptogams, of which Von Schweinitz had made a special 

 study. 



Other valuable contributions followed the bequest of 

 Yon Schweinitz, among which may be specified the Poiteau 

 collection of St. Domingo plants; Chilian plants from Dr. 

 Styles and Dr. Ruschenberger ; Nuttall's collections made 

 in his expeditions to Arkansas, Oregon and the Sandwich 

 Islands ; Menke's Herbarium of 7000 species of European 

 plants derived from Thunberg, Sprengel, Bernhardi, 



