20 MISSOURI BOTANICAL GARDEN BULLETIN 
change, but several thousand specimens are ready to dis- 
tribute to American correspondents.. Exchanges with foreign 
institutions, however, seem best deferred until more stable 
conditions are brought about and the safe delivery of pack- 
ages to European herbaria assured. 
Field Work.—In continuation of the codperative field 
work with the Arnold Arboretum which was begun last 
year, the object of which is to obtain a more complete repre- 
sentation of the plants indigenous to the Southwest with the 
view of eventually publishing a flora of this region, Mr. 
Ernest J. Palmer spent the months of April, May, June, 
and July in Southeastern Texas, in Arkansas, and in South- 
western Missouri. During this time, collections were made 
in Texas at Matagordo, Brazoria, Columbia, Wharton, Eagle 
Lake, Livingston, and Marshall; in Arkansas at Fulton, 
Eureka Springs, and Corning; in Missouri at Noel, Galena, 
Branson, Joplin, Alba, Mansfield, Van Buren, Williamsville, 
and Des Are. Most of these stations were visited again in 
the autumn in order to secure the late flowering plants and 
fruiting specimens of the vernal flora. During the latter 
part of the season collections were also made at Cleveland, 
Osage, McAlester, and Tishomingo, Oklahoma; at Granbury, 
Texas; and at Harrison, Jaspar and Heber Springs, Arkan- 
sas. The material secured by Mr. Palmer is now Gone laid 
out in sets and labelled ready for critical study. Field work 
has also been carried on in Northeastern Missouri by Rev. 
John Davis, who was commissioned by the Garden to collect 
plants during the season from April to October. From Mr. 
Davis the herbarium has received a collection of plants ad- 
mirably representing the flora of Hannibal County. The 
collection also contains a relatively large number of dupli- 
cate specimens which are valuable for exchange purposes. 
Use of the Herbarium by Outside Botanists—The riumber 
of visiting botanists making direct use of the herbarium this 
ae year is considerably larger than in the previous year. 
umerous small loans of herbarium material in particular 
plant groups have been made to specialists for the purpose 
of comparison and monographic studies. Requests for the 
identification of plants are constantly increasing; and fre- 
quently very interesting and scientifically valuable speci- 
mens are obtained in this manner. 
coer Summary: (For the year ending December 31, 
1914). 
Number of specimens acquired: 
