20 MISSOURI BOTANICAL GARDEN. 
this equipment as complete as possible for any special subject on which 
original work is undertaken by competent students. 
A very large number of species, both native and exotic, and of horti- 
culturists’ varieties, are cultivated in the Garden and Arboretum and 
the adjoining park, and the native flora easily accessible from St. Louis 
is large and varied. The herbarium, which includes nearly 250,000 
specimens, is fairly representative of the vegetable life of Europe and 
the United States, and also contains a great many specimens from less 
accessible regions. It is especially rich in material illustrative of Cus- 
cuta, Quercus, Coniferae, Vitis, Juncus, Agave, Yucca, Sagittaria, Epilo- 
bium, Rumex, Rhamnaceae, and other groups monographed by the late 
Dr. Engelmann or by attachés of the Garden. The herbarium is sup- 
plemented by a large collection of woods, including veneer transparen- 
cies and slides for the microscope. The library, containing about 8,000 
volumes and 10,000 pamphlets, includes most of the standard periodicals 
and proceedings of learned bodies, a good collection of morphological 
and physiological works, nearly 500 carefully selected botanical volumes 
published before the period of Linnaeus, an unusually large number 
of monographs of groups of cryptogams and flowering plants, and the 
entire manuscript notes and sketches representing the painstaking work 
of Engelmann. 
The great variety of living plants represented in the Garden, and the 
large herbarium, including the collections of Bernhardi and Engelmann, 
render the Garden facilities exceptionally good for research in system- 
atic botany, in which direction the library also is especially strong. 
The living collections and library likewise afford unusual opportunity for 
morphological, anatomical and physiological studies, while the plant 
house facilities for experimental work are steadily increasing. The E. 
Lewis Sturtevant Prelinnean library, in connection with the opportu- 
nity afforded for the cultivation of vegetables and other useful plants, 
is favorable also for the study of cultivated plants and the modifications 
they have undergone. 
These facilities are freely placed at the disposal of professors of 
botany and other persons competent to carry on research work of value 
in botany or horticulture, subject only to such simple restrictions as 
are necessary to protect the property of the Garden from injury or loss. 
Persons who wish to make use of them are invited to correspond with 
the undersigned, outlining with as much detail as possible the work they 
desire to do at the Garden, and giving timely notice so that provision 
may be made for the study of special subjects. Those who have not 
published the results of original work are requested to state their prepa- 
ration for the investigation they propose to undertake. 
Under the rules of Washington University, persons entitled to can- 
didacy in that institution for the Master’s or Doctor’s degree may elect 
botanical research work as a principal study for such degrees, if they 
can devote the requisite time to resident study. 
WILLIAM TRELEASE, 
Director 
