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144 MISSOURI BOTANICAL GARDEN BULLETIN 
Mr. L. P. Jensen, Arboriculturist to the Garden, spoke 
before the St. Louis Scout Masters’ Association, at the Francis 
Home, October 2, on ‘‘Some Interesting Facts About Trees.’’ 
Hie also gave an illustrated lecture before the Boy Scouts of 
Webster Groves, at the Bristol School, October 20, his subject 
being ‘‘The Use of Trees and Shrubs.”’ 
Dr. B. M. Duggar, Physiologist to the Garden, attended a 
conference on mosaic diseases of plants at the University of 
Wisconsin, October 10-11. On October 10 he conducted the 
afternoon seminar of pathologists, discussing the topic ‘‘Some 
Aspects of Current Research in Mosaic Diseases,’’ and in the 
evening he gave a lecture on ‘‘Micro-organisms and Environ- 
ment.’’ 
Students entering upon work in the graduate laboratory for 
the academic year are as follows: 
Rufus J. Lackland Fellows.—Mr. Arthur F. Camp, A. B. 
University of California, assistant in plant pathology, Univer- 
sity of California, reappointed second year; Mr. Carl C. 
Epling, A. B. University of California, instructor in 
botany, Oregon Agricultural College; Mr. Leo Joseph Klotz, 
B. S. and M. 8. Michigan Agricultural College, reappointed 
second year; Mr. Samuel George Lehman, B. 8. Ohio Univer- 
sity, M. S. North Carolina State College, assistant in botany, 
Ohio University, instructor in botany, North Carolina State 
College, assistant pathologist, North Carolina Agricultural 
Experiment Station; Mr. Selden Richard Warner, B. 8. Wil- 
liam and Mary College, head of John Marshall High School, 
Richmond, Virginia, head of biology department, Sam Hous- 
ton College, Huntsville, Texas. 
Jessie R. Barr Fellows.—Miss Mildred Lewis Johnson, B. 8. 
Oregon Agricultural College, M. S. Washington University, 
assistant in botany, University of Oregon; Miss Grace Eliz- 
abeth Howard, A. B. and M. 8S. University of Washington, 
craduate assistant, University of Washington. 
Teaching Fellows—Mr. Lionel E. Tisdale, B. S. Alabama 
Polytechnic Institute, M. S. Michigan Agricultural College, 
assistant state pathologist, South Carolina Agricultural 
Experiment Station, Clemson College; Dr. Nellie Carter, 
B. 8., M. S8., D. Se. University of Birmingham, Birmingham, 
England. 
