12 MISSOURI BOTANICAL GARDEN BULLETIN 
es by Lenzites saepiaria Fries.” Ann. Mo. Bot. Gard., 
1917. 
The following papers were presented before the Botanical 
Society of America during convocation week of the Amer- 
ican Association for the Advancement of Science, at Pitts- 
burgh, December 28 to January 1: 
B. M. Duggar and Anne W. Davis. “The Disinfection of 
Seed for Pure Culture Work.” 
B. M. Duggar and C. W. Dodge. “The Use of the Colori- 
meter in Hydrogen-Ion Determinations of Culture Solutions 
and Plant Juices by the Indicator Method.” 
George T. Moore. “The Subterranean Algal Flora.” 
George T. Moore. “A Wood Penetrating Alga.” 
S. M. Zeller and C. W. Dodge. “Rhizopogon in North 
America.” 
HERBARIUM 
Continued progress has been made in the herbarium dur- 
ing the year. A relatively large amount of new material has 
been acquired; and another room on the third floor of the 
office building has been equipped with the much-needed steel 
cases, which give sufficient capacity to accommodate all of 
the gymnosperms, including the valuable collections of 
Coniferae from the Engelmann herbarium. 
New Accessions.—The private herbarium of Mr. John H. 
Kellogg, consisting of upwards of 12,000 specimens, has been 
acquired by Ron, This collection consists primarily 
of plants from Missouri, Arkansas and Texas, but also con- 
tains several sets of plants from various parts of the United 
States, which were obtained by Mr.Kelloge through exchange 
with correspondents. Among other important accessions 
secured during the year are the following: From Dr. Adolf 
Alt, 65 plants of Switzerland; E. Bartholomew, 300 “Fungi 
Columbiani,” and 100 “North American Uredinales’’; Ber- 
nice Pauahi Bishop Museum, 420 plants of the Hawaiian 
Islands; Miss Florence Beckwith, 87 plants of Missouri, 
Illinois and Kansas; Dr. R. P. Burke, 266 specimens of 
fungi of Alabama; B. F. Bush, 213 plants of Missouri; 
California Academy of Science, 398 plants of the Galapagos 
Islands, and 74 plants of California; Canton Christian Col. 
lege, 835 plants of southern China; F. 8, Collins, 100 “Phy- 
cotheca Boreali-Americana” ; Ira W. Clokey, 1,205 plants of 
Colorado, Texas, Utah, Nevada, Mexico, etc.; Prof. C. Con- 
zatti, 70 plants of Mexico; D. L. Crawford, 217 plants of 
California; Rev. John Davis, 1,164 plants, chiefly from Mis- 
souri and South Carolina; J. A. Drushel, 107 plants, mainly 
