70 MISSOURI BOTANICAL GARDEN BULLETIN 
Dr. George T. Moore, Director of the Garden, lectured be- 
fore the Artists’ Guild, May 3, on “Plants and People.” 
Dr. Norma E. Pfeiffer, of the University of North Dakota, 
has resumed at the Garden her monographic study of the 
genus Isoetes. . “¥ 
é Id te 
On the evening of June 5, before the cereal Utes 
Dr. B. M. Duggar, Physiologist to the Garden, presented the 
first paper on the subject, “Disease Resistance in Plants: Im- 
munity.” 
Dr. B. M. Duggar, Physiologist to the Garden, spoke be- 
fore the members’ conference of the Chamber of Commerce, 
June 11, on “Why an Art-in-Industry Exhibition in St. 
Louis is Indispensable.” 
Mr. G. H. Pring, Floriculturist to the Garden, published 
an article in the June issue of the Gardeners’ Chronicle of 
America on “Orchids of the Missouri Botanical Garden” and 
also contributed a paper to the May issue of Aquatic Life on 
“Aquatic Plants and Their Cultivation.” 
The first session of the St. Louis Conference of Cereal 
Pathologists was held in the graduate lecture room, June 5, 
following a buffet luncheon served by the Garden. Dr. 
George T. Moore, Director of the Garden, outlined the his- 
tory and work of the Garden. The luncheon was preceded 
by a brief discussion in the graduate laboratory—led by 
Dr. Duggar and assisted by all graduates—of the investiga- 
tions in progress by members of the staff, research fellows, 
and other investigators, 
Recent visitors to the Garden include Dr. P. J. O'Gara, 
director department of agricultural and smelter by-product 
investigations, American Smelting and Refining Co., Salt 
Lake City, June 11; Mr. Edgar M. Ledyard, director agri- 
cultural department, United States Smelting, Refining and 
Mining Co., Salt Lake City; Prof. Kingo Miyabe, of the 
Hokkaido Imperial University, Sapporo, J apan, June 18-19; 
Baron Henry d’Anchald, member of the Academy of Agri- 
culture of France, June 24. 
Volume VI, Number 2, of the Annals of the Missouri 
Botanical Garden has been issued recently with the follow- 
ing contents: 
“Studies in the Physiology of the Fungi. VI. The Rela- 
tion of Bacteria to Cellulose Fermentation Induced by 
Fungi, with Special Reference to the Decay of Wood.” 
Henry Schmitz. . 
