(333) 
as well as those of studies in the plantations, have been 
embodied in papers which will appear in future issues of 
the Garden Journal. 
The reports of Dr. H. H. Rusby, Honorary Curator of the 
economic collections, Mrs. Elizabeth G. Britton, Hon- 
orary Curator of Mosses, and Dr. Arthur Hollick, Hon- 
orary Curator of fossil plants, appear elsewhere. 
Respectfully submitted, 
Joun K. Smatt, 
Head Curator of the Museums and Herbarium. 
REPORT OF THE SUPERVISOR OF PUBLIC INSTRUCTION 
Dr. N. L. Britron, Direcror-1n-CuHIeErF. 
Sir: I have the honor to submit the following report for 
the year 1920. 
Instruction has been given free to the public in a variety 
of ways during the year and has been much appreciated. 
The lecture course was considerably extended and more 
outside lecturers were secured. Instruction by correspond- 
ence has also notably increased. A new edition of the 
guide-book was issued early in the year. 
Lectures 
Forty-five illustrated public lectures on botanical and 
horticultural subjects have been given in the museum 
building on Saturday and Sunday afternoons from April 
17 to October 31 inclusive, the titles of which have been 
published in the Journal. Of these 22 were given by mem- 
bers of the garden staff and 23 by lecturers from the out- 
side. The attendance for the year has averaged about 99, 
the maximum being 287 on September 25. The Sunday 
lectures were better attended in the spring and the Saturday 
ones in the autumn. 
During the early spring and late autumn two courses of 
six lectures each were given in the central display green- 
house of conservatory range 2, where plants could be used 
to illustrate them. ‘The speakers were exclusively members 
