MISSOURI BOTANICAL GARDEN BULLETIN 9g 
Study Society, ‘‘The Life Relations of Some of Our Wild 
Mushrooms.’’ 
L. P. Jensen, March 7, before the Study Club of Collinsville, 
Illinois, ‘‘ Aboriculture.’’ 
George T. Moore, March 10, before the vocational class of 
Cleveland High School, ‘‘ Professions Depending Upon Botany 
and Gardening.’’ 
Hermann von Schrenk, March 22, before the Engineering 
Societies, New York, ‘‘ Destruction of Marine Piling.’’ 
L. P. Jensen, March 28, before the Junior High School 
Parents-Teachers’ Association, Belleville, Illinois, ‘‘The 
Preservation of Wild Flowers.”’ 
L. P. Jensen, April 1, before the Danish Silver Cross So- 
ciety, ‘‘ American Parks and Gardens.’’ 
L. P. Jensen, April 7, before the graduating class of the 
Blair School, at the planting of their class tree in St. Louis 
Park, ‘‘The Value of Trees.’’ 
L. P. Jensen, April 7, before the North St. Louis Business 
Men’s Association, at the memorial tree planting in Water- 
works Park at Chain of Rocks, ‘‘The Value of Trees.’’ 
G. H. Pring, April 20, before the Women’s Club of Carlin- 
ville, Illinois, ‘‘The Landscape Features of the Missouri 
Botanical Garden.’’ 
Hermann von Schrenk, April 20, before the conservation 
section of the Missouri Federation of Women’s Clubs, ‘‘ For- 
estry in Missonri.’’ 
G. H. Pring, April 20, at the Clifton Heights Presby- 
terian Church, ‘‘European Gardens.’’ 
L. P. Jensen, May 1, before the Parkview Association, at 
the Grace Methodist Episcopal Church, ‘‘The Planting and 
Care of Trees in St. Louis.’’ 
B. M. Duggar, May 1, before the St. Louis section of the 
American Chemical Society, at the Annex Hotel, ‘‘The Use 
of Micro-organisms in Industrial Chemistry.’’ 
G. H. Pring, June 2, before the senior students of the 
Cleveland High School, “Advantages Pertaining to the Pro- 
fession of Gardening.”’ 
John H. Kellogg and L. P. Jensen, June 21, before the 
Natural History Museum Association, ‘‘Our Native Planta 
and How to Know Them.’’ 
