104 MISSOURI BOTANICAL GARDEN BULLETIN 
project by permitting the use of the facilities of the graduate 
laboratory. 
The delegates to the Advertising Convention and their 
wives visited the Garden on June 7. 
Dr. George T. Moore, Director of the Garden, spoke at 
the Kirkwood City Hall on “Vegetables,” May 4. 
On his return from California Dr. E. M. East, Professor 
a Genetics, Harvard University, spent June 8 and 9 at the 
arden. 
Professor W. E. McCourt, Professor of Geology, Washing- 
ton University, gave an illustrated lecture on “Geology” be- 
fore the Hortus Club, June 4. 
Mr. L. L. Harter, Plant Pathologist, Bureau of Plant In- 
dustry, was at the Garden, June 12, for the purpose of exam- 
ining the Texas root rot fungus. 
Dr. George T. Moore, Director of the Garden, delivered 
the valedictory address to the St. Louis College of Pharmacy, 
at the Sheldon Memorial on May 16. 
Among those visiting the Garden during June were Mr. 
W. B. Lanham, of the Agricultural Extension Department 
of Texas A. & M. College; Dr. A. G. Johnson, of the Uni- 
versity of Wisconsin; Prof. L. L. Burlingame, of Leland 
Stanford University; and Dr. W. H. Emig, of the Univer- 
sity of Pittsburgh. 
Dr. Hermann von Schrenk, Pathologist to the Garden, 
recently placed on deposit in the Garden library a very rare 
work entitled “Flora Monacensis, seu plantae sponte circa 
Monachium nascentes, quas pinxit et in lapide delineavit 
Jobann Nepomuk Mayrhofer” by Franz von Paula Schrank, 
1811-1816, also “Charakteristik der fir die Arzmeikunde 
und Technik wichtigsten Pflanzen-Gattungen”, by Otto Karl 
Berg, 1861, and “Deutschlands Flora,” by Ernst Hallier. 
At the commencement of Washington University, June 
14, degrees were conferred on the members of the -craduate 
laboratory as follows: Doctor of Philosophy, G. W. Frei- 
berg, with a thesis on “Studies in the mosaic diseases of 
plants”; and S. M. Zeller, “Lenzites saepiaria Fries, with 
special reference to enzyme activity.” The de of Mas- 
ter of Arts was conferred on Ruth Beattie, thesis “Tem- 
perature relations of enzymes with special reference to 
the effects of various temperatures upon the formation of 
glucose from starch by the action of diastase’; Alice 
Pickel, “A taxonomic study of the genus Tetradymia”; and 
