76 MISSOURI BOTANICAL GARDEN BULLETIN 
ease as it affects seedlings will be exhibited. The disease was 
first found in Arkansas on fox-tail, but many susceptible 
hosts have been found among the Gramineae, especially in 
seedling stages. The disease is more prevalent under moist, 
warm conditions. 
NOTES 
A party of about 120 Knight Templars from Kansas City, 
en route to the convention at Memphis, visited the Garden 
April 22 and were shown about the grounds by special 
guides. 
Dr. J. M. Greenman, Curator of the Herbarium, recently 
returned from an extended botanical expedition through Cen- 
tral America. 
Dr. Herman von Schrenk, Pathologist to the Garden, has 
recently returned from an exploring trip to San Domingo, 
bringing back with him a collection of dried plants and seeds. 
Mr. G. H. Pring, Horticulturist to the Garden, spoke be- 
fore the Women’s Club of Carlinville, Ilinois, April 20, on 
‘‘The Landscape Features of the Missouri Botanical Gar- 
den.”’ 
Mr. G. H. Pring, Horticulturist to the Garden, Mr. L. P. 
Jensen, Arboriculturist, and Mr. Paul A. Kohl, Floricultur- 
ist, attended the National Flower Show at Indianapolis, 
March 25-April 1. 
A party of about thirty faculty and students from the 
University of Illinois Library School visited the Garden li- 
brary, April 20, during their annual tour of the libraries and 
related institutions of St. Louis. 
Dr. Hermann von Schrenk spoke before the engineering so- 
cieties at the Engineering Building, New York, March 22, 
on ‘‘Destruction of Marine Piling.’’ He also gave an ad- 
dress before the conservation section of the Missouri Federa- 
tion of Women’s Clubs, April 20, on “Forestry in Missouri.’’ 
The following lectures have been given recently by Mr. 
L. P. Jensen, Arboriculturist to the Garden: ‘‘The Preserva- 
tion of Wild Flowers,’’ before the Junior High School Par- 
ents-Teachers’ Association, Belleville, Illinois, March 28; 
‘‘American Parks and Gardens,’’ before the Danish Silver 
Cross Society, April 1; “The Value of Trees,’’ on Arbor Day, 
