221 
3. Christian Gottfried Nees von Esenbeck (1830-1851) 
4. Heinrich Robert Goppert (1851-1884) 
5. Adolph Engler (1884-1889) 
6. Karl Prantl (1889-1893) 
7. Ferdinand Pax (1893-1926) 
8. Peter Stark (1926-1928) 
9, Johan Buder (1928- ) 
Open free Wednesdays and Saturdays and on the 1st and 2nd 
Sundays of the month, 8-12 a.m.; 2-6 p.m. Source of income: 
Appropriations by the State. Plantations: Systematic, geographic, 
ecologic, economic. Arboretum. Visited by school classes ac- 
companied by their teachers. The Garden, the herbarium, and the 
botanical library and museum, constitute the Botanical Institute 
of the University. Publication: Samen-Verzeichnis. 
COLOGNE (SEE KOLN) 
DARMSTADT 
BoTANISCHER GARTEN DER TECHNISCHEN HOCHSCHULE 
Rossdorferstrasse 140 
Established: 1814. Area: 43,958 sq. meters. 
Directors: 
1. J. Eduard Hess (1814-1841) 
Georg Fritz Schnittspan (1841-1866) 
Eduard Metzler (1866-1867-ad interim) 
Heinrich Hanstein (1867-1869) 
Leopold Dippel (1869-1896) 
Heinrich Schenck (1896-1927) 
G. Keyl (1927-1928-ad interim) 
Friedrich Oehlkers (1928-1932) 
Bruno Huber (1932-1934) 
10. Otto Stocker (April, 1934— ) 
Serves as a public park. Free, daily. Source of imcome: 
State appropriations; sale of duplicate plants. Library: About 
30,000 volumes. Herbarium: About 40,000 specimens. Planta- 
tions: Systematic, geographic, ecologic, economic, morphologic. 
Arboretum. Fruticetum. Supplies study material for the Staat- 
liche Techniche Hochschule, and serves as field for physiological 
investigations. 
NO oN oy) ae NS 
