14 
Electric tuning-fork of one hundred complete vibrations in 
one second. 
Morse key. 
Numbers 75 to 78, inclusive, exhibited by the Department 
of Physiology of Columbia College at the College of 
Physicians and Surgeons, New York. 
DEPARTMENT OF BOTANY. 
In charge of Dr. Carlton C. Curtis. 
79. STUDIES IN THE GENUS RANUNCULUS. Prof. N. L. Britton. 
Exhibit of some of the rare and little known species, with an 
undescribed form from Virginia. 
80. STUDIES IN AMERICAN BRYOLOGY. By Elizabeth G. Britton. 
1) A hybrid moss. The normal sporophyte and the hybrid 
occurring on the same plant of Aphanorhegma serrata. 
Exhibits: The specimens collected by Drummond, 
the slides under the microscope, and drawings made 
from these slides. 
2) Physcomitrella patens, its systematic position. Exhibits: 
Specimens, slides, and drawings are shown to prove 
that it has been wrongly placed among the cleisto- 
carpous mosses, and that its natural alliance is with 
the Funariacez, to which it is closely related through 
its gametophyte. 
81. STUDIES IN THE FLORA OF BOLIVIA. Prof. Henry H. Rusby, 
Exhibit of undescribed species from the Eastern Cordillera. 
82. STUDIES OF THE NORTH AMERICAN LEGUMINOS&. Anna 
Murray Vail. Exhibit of undescribed and little known 
species. 
82a. STUDIES OF THE NORTH AMERICAN SAXI FRAGACEA. Dr. 
Wm. E. Wheelock. Exhibit of little known species. 
83. STUDY OF THE EAST AMERICAN SPECIES OF SANICULA. 
Eugene P. Bicknell. Exhibit of specimens and drawings illus- 
trating the four recognized species, two of which are un- 
described. 
