(26) 
which have been prosecuted by Dr. N. L. Britton for some 
time. 
Tropical Laboratory 
The tropical laboratory at Cinchona, Jamaica, has been 
maintained in readiness for the use of investigators who might 
visit it for the purpose of forwarding investigations of various 
kinds. 
Dr. Forrest Shreve, Laboratory Assistant in the Garden, 
went to this laboratory in October and began some extensive 
researches on transpiration and on the physiology of epi- 
phytes, which will engage his entire attention for several 
months. Other investigators making use of the facilities of 
this laboratory are noted below. 
Special Investigations 
The following alphabetical list contains the names of all 
persons to whom the privileges of the Garden have been 
granted for extended periods during the year, together with 
brief notes as to the special investigations pursued while in 
residence. 
LeRoy Asrams. University of Southern California; Stanford 
University, A.B., 1899; A.M., 1902. Assistant in botany, 
Stanford University, 1900-1902. Instructor in botany, Stanford 
University, 1902-1904. Fellow in botany, Columbia Uni- 
versity, 1904-5. 
The flora of southern California. 
Howarp James Banker. Syracuse University, A.B., 1892; 
Columbia University, A.M., 1900. Professor of biology, De 
Pauw University. 
The Hydnaceae of North America. 
Mary Franxkiin Barrett. Smith College, B.L., 1901; Co- 
lumbia University, A.M., 1905. 
The Tremelline Fungi. 
Cuartes Epwarp Wacstarr Bareson. Columbia College, 
E.M., 1902. 
ELizABETH BILLInGs. 
Pedigree cultures of native plants. 
