BRIEFER ARTICLES 
THE HALL HERBARIUM 
Students of botanical taxonomy in the Central States and America 
are to be congratulated upon the donation to the Field Museum of 
Natural History of the herbarium of the late Ertau Hatt. The family 
of Mr. Hatt, after long deliberation, decided that in the herbarium of 
the Field Museum the botanical work of their father would be advanta- 
geously preserved in a highly referable form; his individuality main- 
tained; and his material most carefully organized. . 
The herbarium of Mr. Hatt comprises about 35,000 sheets, par- 
ticularly rich in western and southwestern United States plants. It 
contains the original Hatt plants of Texas, the American Plains, and 
Oregon; the Hatt and Harsour collections of the Rocky Mountains 
and American Plains; and a unique series of western species grown at 
Athens, Illinois, from seeds of plants collected from Texas northward 
to Oregon. The latter series is carefully labeled, so that in every case 
the original plant may be directly compared with the specimen of the 
same as grown in the new environment. 
Mr. Hatt was an active and careful conductor of exchanges from 
-1858 to 1870, a fact that results in large series of plant specimens con- 
tributed to his herbarium by BoLanpER, California; BRANDEGEE, 
Colorado; BuckiEy, Texas; CANBy, various localities; CHAPMAN, 
Florida; Crinton, New York; CourHouy, Ecuador; Curtiss, Vir- 
ginia and Florida; Faxon, Florida; FENDLER, New Mexico; ForsHEy, 
Texas; GarBer, Florida; GATTINGER, Tennessee; Hate, Louisiana; 
HowELt, Oregon and Washington; JAmes, California; Jones, Utah; 
Loomis and Croom, North Carolina; Macoun, Canada and British 
Columbia; Mour, Alabama; Parry and Patmer, Mexico; RAVENEL, 
South Carolina; RippELL, Texas; SHorT, Kentucky; Torrey, various 
localities; Vasey, Illinois and California; Vorrtum, Texas; Wo rr, 
Colorado; Wricut, New Mexico; McOwen, South Africa; MUELLER, 
Australia; and various other American and foreign collectors and 
herbarists—C. F. Mirtispaucu, Field Museum of Natural History, 
Chicago. | 
239] [Botanical Gazette, vol. 62 
