307 
14. Johannes Cornelis Schoute (1917-1931 ) 
15. Willem Hendrik Arisz (1931- ) 
Open daily. Admission 25 cents; Tuesdays 2 to 4 p.m. free. 
Source of income: Appropriations from the state. Library: In 
the Botanical Laboratory. About 1500 books; 227 ae ae 
received. Herbarium: 100,000 specimens. Plantations: Ecologi 
and systematic. Publication: Index Seminum. Museum in fie 
Laboratory, not open to the public. Supplies living study material 
to local schools. Affiliation: Belongs to the University of Gron- 
ingen. See Groningen (2). 
GRONINGEN (2) 
Hortus Botanicus DE WoLF 
Location: Haren (Groningen) Rijksstraatweg 
Address: Botanisch Laboratorium, Groote Rozenstraat 31 
Established: 1918. Area: 12 hectares, of which 5 hectares are in 
culture (1938). 
Director: Willem Hendrik Arisz (1918-1931). 
Does not serve as a public park. Belongs to the University of 
Groningen. 
HARTECAMP 
CLIFFORD’S GARDEN 
George Clifford (1685-1760), a director of the Dutch East 
India Company, “ formed a famous botanic garden with museum 
and library at Hartecamp,” three miles from Haarlem. 
Linnaeus resided with Clifford in 1735. The herbarium was ar- 
ranged and written up by Linnaeus under the title, Hortus Clif- 
fortianus. 3000 species of this collection (thirteen sheets of which 
bear notes in handwriting of Linnaeus) forming the types of this 
work are now in the Herbarium of the British Museum. (Fide. 
British Mus. (Nat. Hist.) Dept. Bot., Exhibition of a selection 
from the historical collections. Fifth International Bot. Congress, 
1930. London, p. 13.) 
