(432) 



Williams spent some fifteen months in Bolivia, and returned 

 in November, with what is probably the most important 

 botanical collection ever brought out of that part of the 

 world ; it is now being studied and arranged, Mr. Williams 

 remaining in the employ of the Bolivian company for some 

 months. The results of this exploration and the study of 

 the material secured will be a grand contribution to botanical 

 science. 



The contribution of $600.00 by Mr. Dodge is for the pur- 

 pose of continuing exploration in the West Indies, especially 

 in the Danish Islands. 



As suggested in my last annual report, a special exploration 

 fund which would yield sufficient income for the carrying on 

 such work as that above outlined could be operated by the 

 Garden to very great advantage. 



Investigations. 



The facilities of the Garden for the furtherance of research 

 have been increased by additions to the collections of books, 

 living, fossil and preserved plants, and to the equipment of 

 the laboratories. Perhaps the most notable advance has been 

 made in the development and organization of the work in 

 horticulture, physiological chemistry and plant pathology. 



The results of a large number of completed investigations 

 have been brought out in the publications of the Garden and 

 other periodicals, and others are still in press. 



Detailed memoranda of the activities of the members of the 

 staff, and of the members of the faculties of cooperating in- 

 stitutions are given below. 



The results described have been accomplished in the inter- 

 vals of the regular duties connected with the different depart- 

 ments of the Garden, and all of the members of the staff 

 have participated in the guidance of registered investigators. 



An account of the work of investigators registered for the 

 privileges of the Garden is to be found in the report of the 

 Director of the Laboratories. 



Dr. D. T. MacDougal, first assistant and director of the 



