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Comprehensive articles upon the development and organi- 

 zation of the Garden have been published in Science and 

 Popular Science Monthly by invitation. Lectures have been 

 given under the auspices of several institutions and the re- 

 sults of work accomplished in the laboratories have been pre- 

 sented before various scientific societies. The manuscript of 

 an advanced text-book on Plant Physiology, which has been 

 under preparation for several years, has been completed, and 

 is now in the hands of the publisher. 



Respectfully submitted, 



D. T. MacDougal, 

 Director oj the Laboratories. 



