(19) 
BULLETIN 
BuLieTin no. 25, with 120 pages, was issued March 16, 
1911. It contains the annual reports of the Director-in- 
Chief and other officers for the year rgto. 
BULLETIN no. 26, completing the seventh volume, con- 
tains ‘‘A Biologic and Taxonomic Study of the Genus 
Gymnosporangium,” by Frank Dunn Kern, and two 
indexes, making a total pagination of 494 pages, with 11 
plates and 68 figures, for Volume VII. 
CoNTRIBUTIONS 
Contributions by members of the staff or students of the 
Garden reprinted during the year from other than Garden 
publications, are as follows: 
o. 139. ‘‘ Additions to the Flora of Peninsular Florida,” 
by J. K. Small. 
No. 140. “Studies on the Rocky Mountain Flora— 
XXIV,” by Per Axel Rydberg. 
No. 141. “Studies on the Rocky Mountain Flora— 
XXV,” by Per Axel Rydberg. 
No. 142. ““Notes on Rosaceae—V,” by Per Axel Ryd- 
berg. 
No. 143. “Results of a Preliminary Study of the So- 
called Kenai Flora of Alaska,” by Arthur Hollick. 
No. 144. ‘The Paleobotanical Collections of the New 
York Botanical Garden,” by Arthur Hollick. 
No. 145. ‘‘Notes on Rosaceae—VI,” by P. A. Rydberg. 
Norra AMERICAN FLORA 
Volume 25, part 3, containing descriptions of the families 
Rutaceae and Surianaceae by Percy Wilson, the Simarou- 
baceae by J. K. Small, and the Burseraceae by J. N. Rose, 
was issued May 6, I9II. 
Lectures 
Pusuic LECTURES 
Illustrated public lectures on botanical subjects have 
been given in the museum building on Saturday afternoons 
