16 MISSOURI BOTANICAL GARDEN BULLETIN 
526, valued at $123,227.28. There are also 329 manuscripts, 
valued at $1,605.80, and 930,241 index cards, valued at 
$9,410.91, and 244 maps, valued at $272.10, making the. 
total estimated value of the library and card catalogue $134,- 
516.09. <A total of 9,312 index cards have been added, of 
which 1,077 were typewritten by Garden employees, and 
8,235 purchased at a cost of $118.29. The number of books 
bound was 355; 3 manuscripts donated, valued at $2.55; 34 
maps donated, valued at $10.50; and 48 maps purchased at 
a cost of $3.00. 
NOTES 
Dr. B. M. Duggar, Physiologist to the Garden, has been ap- 
pointed a member of the Council of the American Associa- 
tion of University Professors. 
Mr. Alexander Lurie, Horticulturist to the Garden, has 
been appointed pathologist for the Society of American Flo- 
rists and Ornamental Horticulturists for the year 1919. 
Dr. B. M. Duggar, Physiologist to the Garden, = 
a paper on “Hydrogen Ion Concentration and Bacterial 
Activity” before the Washington University School of Medi- 
cine, January 13. 
On January 15, Dr. George T. Moore, Director of the Gar- 
den, spoke before the St. Louis Natural History Museum 
Association at the Public Library, on “The Educational 
Value of the Missouri Botanical Garden.” 
Mr. Henry Schmitz, Rufus J. Lackland fellow, who has 
been in the Naval Reserves since the beginning of the war, 
has returned to resume his work at the Garden. 
Mr. Alexander Lurie, Horticulturist to the Garden, spoke 
on “Pruning” at the Gardeners’ Association of St. Louis, 
January 8, and gave a lantern-slide talk on “Horticulture” 
at the meeting of the St. Louis Florists’ Club, January 9. 
Dr. George T. Moore, Director of the Garden, Dr. B. M. 
Duggar, Physiologist, and Dr. J. M. Greenman, Curator of 
the Herbarium, attended the meetings of the Botanical So- 
ciety of America, at Baltimore, December 26 and 27. Dr. 
Moore presented a paper on “Botanical Participation in War 
Work,” and Dr. Duggar one on “Some Factors in Plant 
Physiological Research.” 
The display of blooming orchids in the aroid house is now 
at its height. The greater of the exhibit is taken up by 
the slipper orchids, of aces apn 400 plants are momecdel, 
