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and Canada, in which numerous new species have been de- 

 scribed and new systematic arrangements established. At- 

 tention has also been given to the guidance of the research 

 work of various students and members of the staff. 



Reports Appended. 



I submit, also, reports by the Curator of the Museums and 

 Herbarium, the Curator of the Economic Collections, the 

 Director of the Laboratories, the Librarian, the Head Gar- 

 dener, the Superintendent of Buildings and Grounds, and a 

 Schedule of Expenditures under appropriations by the Board 

 of Managers. 



Respectfully submitted, 



N. L. Britton, 

 Director-in- Chief. 



