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conservatories have been of service to the gardening depart- 

 ment in bringing the ranges under control. 



The Journal has been published monthly during the year, 

 the completed volume making 212 pages, including 5 plates 

 and 10 figures. A Practical Text Book of Plant Physiology, 

 a volume of 352 pages and 159 figures, has been published 

 by Longmans, Green & Co., who also have in press a new 

 manual of " Elementary Plant Physiology" by myself. 



Investigations on the relation of light to the development 

 and growth of plants begun in 1896, are now being com- 

 pleted and the manuscript of the essay on the subject will 

 be offered for publication in the Memoirs at an early date. 

 In addition to my own work, the usual guidance and assist- 

 ance has been rendered to students in the laboratories. 



Lectures and addresses have been given to various horti- 

 cultural and botanical societies, and also at several colleges. 



The results of special studies of members of the staff and 

 students have appeared in the publications of the Garden, 

 and in other periodicals, and some are still in press. 



In accordance with an arrangement between the Garden 

 and the University of Montana, I visited that institution in 

 June, and arranged for the shipment of its collection of her- 

 barium specimens to the Garden for determination. I also 

 formed a member of the biological expedition which made 

 explorations in the Mission and Kootenai mountains, and 

 around Flathead Lake, maintaining a summer laboratory at 

 Big Fork, at the northern end of the lake, during July and 

 August. 



I attended the meeting of the American Association for 

 Advancement of Science, at Denver, in August, filling the 

 position of Secretary of the Council, and had the honor to be 

 elected General Secretary for the ensuing year. 



During the absence of the Director-in-Chief in St. Kitts in 

 September and October, the duties of that office were dis- 

 charged by me from September 1st to October 10th. 



The weekly conventions of the working botanists of New 

 York at the museum have been continued, and the subjects 



