(3ii) 



Museum have been made and he has prepared descriptive 

 labels for a considerable portion of these. He has continued 

 to act as editor of the Torrey Botanical Club, having special 

 charge of its Bulletin and Memoirs, and has published 

 several reviews in Torreya. He has also assisted in the 

 Garden's nature-study work in cooperation with the public 

 schools of the Borough of the Bronx, and delivered three 

 lectures on the regular Garden lecture course. 



Dr. William A. Murrill, Assistant Director, has looked after 

 the development and conserving of the collection of fungi. 

 In this work he has had the cooperation of Mr. Fred J. 

 Seaver, Director of the Laboratories. (For further details 

 in this connection, see the reports of the Assistant Director 

 and the Director of the Laboratories.) 



Mrs. N. L. Britton continued her voluntary aid in de- 

 veloping the moss collection, particularly in mounting 

 the exotic mosses of the Mitten Herbarium, and has con- 

 ducted exchanges with various institutions abroad in 

 order to complete, as far as possible, the representation 

 of species in certain genera which are being studied in the 

 preparation of manuscript for North American Flora 

 She has studied critically the genera Archidium, Trema- 

 todon, Pleuridium, Trichodon, Ditrichum, Saelania, Cerat- 

 odon, Distichium, Bryoxiphium, Brachyodontium, and Se- 

 ligeria. She accompanied Dr. Britton in West Indian 

 exploration, and, on the expeditions, she shared in the labor 

 of collecting and preserving specimens in the field. 



Mr. R. S. Williams, Assistant Curator during the first 

 half of the year, had charge of the lichen collection and 

 assisted Mrs. Britton in the development of the moss col- 

 lection. He studied miscellaneous collections of Mexican 

 and West Indian mosses and prepared revisions of the 

 genera Leucobryum, Leucophanes, Philopogon, and Dicran- 

 odontium for North American Flora. 



Dr. P. A. Rydberg, Curator, has attended to the details 

 connected with the herbarium of flowering plants, which 

 this year involved a great deal of sorting and rearranging 

 of specimens. He also separated the Otto Kuntze Her- 



