MISSOURI BOTANICAL GARDEN BULLETIN 23 
Recent visitors to the Garden include Dr. H. S. Jennings, 
head of the department of zoology, Johns Hopkins Uni- 
versity; Dr. R. W. Webb, scientific assistant, department of 
plant pathology, U. 8. Department of Agriculture, Madison, 
Wisconsin; Dr. Norma E. Pfeiffer, associate professor of 
botany, University of North Dakota. 
Mr. L. P. Jensen, Arboriculturist to the Garden, gave an 
illustrated lecture before the St. Louis Natural History 
Museum Association, at Soldan High School, January 17, on 
‘“‘The Call of Humanity—Preserve Our Forests!’’; before 
the St. Louis Park Department Association at the Swedish 
Hall, February 14, on ‘‘The Preservation of Our Forests”’; 
and on February 16, before the Women’s Club of Pana, IIL., 
at the Elks Club House, on ‘‘Planting and Care of Home 
Grounds.’’ 
Mr. John H. Kellogg, in charge of herbaceous grounds and 
nursery at the Garden, spoke before the scoutmasters of Web- 
ster Groves, Mo., January 8, on ‘‘Our Native Trees’’; before 
the Liberty Prairie Women’s Club, Liberty Prairie, Ill., Janu- 
ary 18, on ‘‘Ornamental Planting on the Farm’’; and gave an 
illustrated lecture before the Boy Scouts Troop No. 90, at 
Temple Shaare Emeth, February 14, on ‘‘Winter Botany.’’ 
Dr. George T. Moore, Director of the Garden; Dr. J. M. 
Greenman, Curator of the Herbarium; Dr. Edgar Anderson, 
Geneticist; Dr. Nellie Carter, Instructor in Botany, Henry 
Shaw School of Botany, and Mr. H. C. Young, Crop Pro- 
tection Institute Fellow, attended the meetings of the Ameri- 
can Association for the Advancement of Science, at Boston, 
December 26-30. Mr. Young presented a paper on ‘‘'Toxic 
Properties of Colloidal Sulphur.’’ 
The following addresses were given in Cincinnati re- 
cently by Dr. George T. Moore, Director of the Garden: 
‘“‘Botany and Business,’’ before the Blue Hydra Society of 
the University of Cincinnati, February 12; ‘‘The Relation of 
the Botanical Garden to Business and Industrial Life,’’ at 
noon, February 13, before the Chamber of Commerce of 
Cincinnati; ‘‘The Relation of a Botanical Garden to Civie 
Life as Illustrated by the Missouri Botanical Garden,’’ in 
the evening, February 13, before the Cincinnati Chapter of 
the Wild Flower Preservation Society. 
