26 THE BOTANISTS OF PHILADELPHIA. 



had been after the Linnsean system in large cumbersome 

 port-folios, in a narrow, dark and inconvenient hall. The 

 removal gave opportunity for an entirely new arrangement, 

 more in accordance wdth the progress of the science, on 

 enclosed shelves after the most approved modern methods, 

 and in well-lighted apartments convenient for reference and 

 study. 



In 1854, the lamented Elias Durand began the work of 

 forming a special North American Herbarium from the 

 stores of the Academy, contributing largely from his private 

 collection, of species collected by Lindheimer, Fendler, 

 Wright and others. In this labor he was occupied four 

 years. Since his death the work of perfecting this depart- 

 ment has been continued, and nearly all of the collections 

 made in our newer territories by Parry, Lemmon, Palmer, 

 Kellogg Ward, Rothrock, Pringle and others have been con- 

 tributed at various times by Gray, Canby, Parker, Meehan, 

 Rothrock, Martindale and Redfield. This collection and the 

 "Short Herbarium" occupy the upper of the two rooms 

 devoted to botany in the south-west corner of the building, 

 while the lower room contains the general herbarium, and 

 a large case devoted to the reception of fruits, seed vessels 

 and other vegetable productions. 



One of the most recent additions to the Academy's Her- 

 barium is the loan collection of the Lewis & Clark plants 

 from the American Philosophical Society. The following 

 is an interesting account of this recent acquisiton : 



" The expedition of Captains Merewether Lewis and 

 William Clark, from what was then the village of St. Louis to 

 the sources of the Mississippi and across to the Pacific Coast, 

 was one of the marvels in the early history of the American 



