CONTENTS 



Report of the Secretary and Director-in-Chiee for 



I < lOO, ....... 



Report of the Curator of the Museums, . 



Report of the Curator of the Economic Collections, 



Report of the Director of the Laboratories, 



Report of the Librarian, .... 



Report of the Curator of the Plantations, 



Report of the Head Gardener, 



Schedule of Expenditures during 1900, . 



Report of the Scientific Directors, 



Report of the Committee on Patrons, Fellows and 

 Members, ........ 



Kl.l'ORT OF THE TREASURER, ...... 



Botanical Contributions : 



Propagation of Lysimachia terrestris, by D. T. Mac- 

 Dougal (with Plate 13 and 7 figures), 



The Mimosaceae of the Southeastern United States, by 

 John K. Small, ...... 



Contributions to the Botany of the Yukon Territory : 



1. An Enumeration of the Hepaticae collected by R. 



S. Williams, 1S98-1899, by Marshall A. 

 Howe (with Plate 14), .... 



2. An Enumeration of the Mosses collected (with 



Plates 15-24), by R. S. Williams, 



3. An Enumeration of the Pteridophytes collected by 



R. S. Williams and J. B. Tarleton, by L. 

 M. Underwood, ...... 



4. An Enumeration of the Flowering Plants collected 



by R. S. Williams and J. B. Tarleton, by 

 N. L. Britton and P. A. Rydberg, . 



The Oaks of the Continental Divide North of Mexico 

 (with Plates 25 to 33), by P. A. Rydberg, 



25 

 35 

 38 

 42 



5i 



57 

 60 



64 



66 

 79 



82 

 S 9 



101 

 io 5 



148 



149 



1S7 



