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forward for a long period of time. The duplicate specimens 

 which are obtained are used in an important way as ex- 

 changes with other institutions, and through these ex- 

 changes many valuable specimens and plants are received. 

 Noteworthy exchanges of the present year have been made 

 with the United States National Museum, and the United 

 States Department of Agriculture at Washington; with 

 the Field Museum of Natural History of Chicago, with 

 the Royal Botanic Gardens at Kew, England, with the 

 Botanical Garden and Museum at Berlin, Germany, with 

 the Bureau of Science of the Philippine Islands at Manila, 

 with the Jardin des Plantes, Paris, France, and with the 

 Geological and Natural History Survey of Canada. 



Investigations 



Curatorial and administrative work has required most 

 of the time of the scientific staff, but such as could be spared 

 has been devoted to original investigations, though most of 

 what has been done has been accomplished outside of 

 regular hours of attendance. Students and visiting officers 

 from other institutions have used the facilities of the Garden 

 for research to great advantage. Members of the staff 

 have also made visits to other institutions for comparative 

 studies of their collections. A noteworthy trip was made 

 by Dr. Murrill, Assistant Director, to the botanical museums 

 of northern Europe in the autumn for a comparative study 

 of the larger fungi related to mushrooms, during which 

 results of much scientific importance were reached. The 

 publications of the Garden have been continued by the 

 aid of the income of the David Lydig Fund bequeathed by 

 the late Ex-Chief Justice Charles P. Daly. A detailed 

 account of these is given in the report of the Assistant 

 Director, herewith submitted. 



Research Scholarships 



The system of granting worthy students research scholar- 

 ships, carrying allowances of $50 a month during residence, 



