(26) 
Vol. 7, part 2, containing descriptions of the families Cole- 
osporiaceae, Uredinaceae and Aecidiaceae (pars), by J. C. 
Arthur, was issued March 6, 1907. 
Vol. 25, part 1, containing descriptions of the family Ge- 
raniaceae by Miss L. T. Hanks and J. K. Small, the Oxali- 
daceae and Linaceae by J. K. Small, and the Erythroxyla- 
ceae by N. L. Britton, was issued August 24, 1907. 
Vol. 9, part 1, containing descriptions of the Polyporaceae 
(pars), by W. A. Murrill, was issued December 19, 1907. 
Lectures 
Pusiic LECTURES 
Two series of lectures have been delivered to the general 
public on Saturday afternoons, one in the spring and one in 
the autumn. These lectures were as follows: 
April 27. «‘The Life Story of a Tree,” by Dr. C. Stuart 
Gager. 
May 4. ‘©The Flowers of Trees and Shrubs Growing 
Wild near New York City,” by Dr. N. L. Britton. 
May 11. ‘‘Jamaica: Its Flora, Scenery and Recent Dis- 
aster,” by Dr. M. A. Howe. 
May 18. ‘* Water Lilies and other se as Plants; their 
Relation to Horticulture,” by Mr. G. V. 
May 25. ‘* The Influence of eos in the Formation 
of Recent and Ancient Swamps,” by Dr. Arthur Hollick. 
June 1. ‘Some Little Known Edible Fruits of the United 
States,” by Dr. H. H. Rusby. 
October 5. ‘*The Salton Sea and its Effect on Vegeta- 
tion,’ by Dr. D. T. MacDougal. 
October 12. ‘* Collecting Fungi in the Wilds of Maine,” by 
Dr. W. A. Murrill. 
October 19. **The Forms and Functions of Leaves,” by 
Dr. C. Stuart Gager. 
October 26. ‘¢The True Grasses and their Uses,” by Mr. 
George V. Nash. 
November 2. ‘* The Giant Trees of California: their Past 
History and Present Condition,” by Dr. Arthur Hollick. 
