thp: botanists of Philadelphia. 25 



Treviranus, Mertens, etc. ; the Ashmead collection of marine 

 alg£e ; Lesqnereux's collection of over 700 species of algce, 

 authenticated by the best algologists of the age, and a 

 large collection of cryptogams from Ravenel. More 

 recent additions are the herbaria of the late Thomas 

 G. Lea, of Cincinnati, and of Dr. Joseph Carson, late 

 Professor of J^Iateria Medica in the University of Pennsyl- 

 vania ; a large collection from southern Europe and from 

 India, made by the late John Stuart Mill, received from 

 Miss Taylor, through the Director of the Kew gardens and 

 the kindness of Dr. Gray ; the collections of the late Dr. 

 Charles Pickering, made in his journeys through oriental 

 regions in 1844 and 1845 ; Syrian and Algerian plants from 

 Dr. George Post, of Beirut; Floridan plants from Dr. 

 Ga^rber; Mexican plants collected by Parry, Palmer, 

 and Pringle, and a set of mosses and hepaticae of North 

 America, collected and named by the late Col. F. Austin. 



The most important accession to the Academy's collec- 

 tion was the Short Herbarium of Dr. Charles W. Sliort, 

 of Louisville, Ky. For this the Academy was indel)ted 

 to the strenuous exertions of Dr. Gray in its behalf, and 

 to the liberality of Dr. Short's family. The plants of this 

 collection are uncommonly choice specimens, from all 

 active collectors up tc 1863, and are laid in sheets of extra 

 size, arranged in 325 book-form cases, of which the North 

 American species occupy 261, and the exotic species 64. 



The work of arranging the earlier collections of the 

 Academy was mainly accomplished by Nuttall and Picker- 

 ing, followed later by Goddard, Bridges, Zantzinger, Durand, 

 Burk, Scribner, Kedfield, Smith, Brown and Meehan. Until 

 the removal to the new building, in 1876, the arrangement 



