MISSOURI BOTANICAL GARDEN BULLETIN 13 
George T. Moore, October 13, before the City Club, “The 
Relation of the Missouri Botanical Garden to the City”. 
George ‘T’. Moore, November 11, before the Sherman 
School Patrons ‘and Teachers’ Association, on the Garden 
and its activities. 
W. W. Ohlweiler, November 19, before the Missouri 
ta gs Garden Students’ Club, “Introduction of Tropical 
ants”’. 
J. R. Schramm, November 24, before the Indiana Apple 
Show, “The Apple Plant in Health and in Disease”. 
G. H. Pring, December 7, before the Missouri Botanical 
Garden Students’ Club, ‘The Garden Collection of Orchids”. 
C. H. Thompson, December 8, before the Girls’ Self Cul- 
ture Club of the St. Louis Settlement Association, an illus- 
trated talk on the Garden. 
B. M. Duggar, December 13, before the Gamma Alpha 
(graduate) fraternity of the University of Illinois, “In Scien- 
tific Training What Constitutes Breadth?” 
H. von Schrenk, December 21, before the Academy of 
Science of St. Louis, “The Modern Uses of Lumber”. 
Publications and Papers.—The following articles by mem- 
bers of the staff or of the graduate laboratory have appeared 
since the publication of the last report, and furnish one of 
the tangible evidences of the activity of the research work 
carried on at the Garden: 
Duggar, B. M., and Cooley, J. S. ‘The Effects of Surface 
Films and Dusts on the Rate of Transpiration”. Ann. Mo. 
Bot. Gard., No. 1, 1914. 
Duggar, B. M., and Merrill, M. C. “The Effect of Certain 
Conditions upon the Acidity of Tomato Fruits”. Ann. Mo. 
Bot. Gard., No. 2, 1914. 
Duggar, B. M., and Cooley, J. S. “The Effects of Surface 
Films on the Rate of Transpiration: Experiments with 
Potted Potatoes”. Ann. Mo. Bot. Gard., No. 3, 1914. ; 
Duggar, B. M. “Physiology and Ecology”. American 
Yearbook, 1914. , eee 
Duggar, B. M., and Davis, A. R. “Enzyme Action in 
Fucus vesiculosus”. Ann. Mo. Bot. Gard., No. 4, 1914. 
von Schrenk, H. ‘Two Trunk Diseases of the Mesquite”. 
Ann. Mo. Bot. Gard., No. 2, 1914. 
von Schrenk, H. “A Trunk Disease of the Lilac”. Ann. 
Mo. Bot. Gard., No. 2, 1914. : 
Greenman, J. M. “Descriptions of North American Sene- 
cioneae”. Ann. Mo. Bot. Gard., No. 3, 1914. 
