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ADDISONIA 
The third volume of this publication, containing 84 
pages of popular descriptions and 40 colored plates, ap- 
peared in four parts, issued in March, June, September, 
and December. 
CONTRIBUTIONS 
No. 203. The Flora of the American Virgin Islands, 
by N. L. Britton. 
No. 204. Further Notes on the Structural Dimorphism 
of Sexual and Tetrasporic Plants in the genus Galaxaura, 
by M. A. Howe. 
No. 206. Revision of the North American Species of 
Encalypta, by Dorothy Coker. 
o. 207. Notes on Plants of the Northern United 
States—IV, by Francis W. Pennell. 
DocENTRY 
Over 2,360 visitors, including classes from public and 
private schools, have availed themselves during the year 
of the privilege of viewing the buildings and grounds under 
the guidance of Mr. P. Wilson, Mr. R. S. Williams, and 
Mr. H. W. Becker. 
Nature STuDY 
On January 22, about 240 biology pupils from Evander 
Childs High School, accompanied by Mr. Paul B. Mann and 
several other biology teachers, came to the Garden to 
study the conservatory collections and attend an illus- 
trated lecture on Forestry by Mr. George E. Hewitt. 
On February 27, 500 biology pupils from the Evander 
Childs High School, accompanied by Mr. Mann, Mr. 
Hewitt, and several other teachers, attended a lecture in 
the museum by Mr. Henry G. Parsons on ‘‘How to Make 
and Care for a Home Garden.” 
On April 17, 176 students from the Evander Childs 
High School attended a lecture by Mrs. Britton on the 
preservation of our native plants under the auspices of the 
Caroline and Olivia Phelps-Stokes Fund. 
