154 
Dr. J. N. Rose, Research Associate of the rahi Insti- - 
tution of Washington, is spending considerable t at the 
Garden this summer in continuation of the joint pie ee 
of the cactus family commenced in 1912. 
Mr. Earl E. Sherff, a student of the genus Bidens, spent a 
week at the Garden in July investigating the herbarium col- 
lections of these plants, in continuation of work previously carried 
n by him at the Field Museum of Natural History in es 
the Missouri Botanical Garden and other institutions. as 
gratifying to learn from Mr. Sherff that the collections 7 he 
Garden furnished him a very large amount of information which 
he had not obtained at other places. 
Mr. Joseph Gilman, of the agricultural experiment station at 
Madison, Wisconsin, spent the month of August at the Garden 
on a scholarship grant for the study of the flowers of Cichorium 
Intybus. 
n International Phytogeographic Excursion in America, 
organized by Professor Henry C. Cowles the University of 
Chicago, a Frederic E. Clem ents, of om University of Min 
nesota, commenced its observations in New York and vicinity 
on July 27, on which day a visit was made to the Brooklyn 
Botanic Garden and to the Hempstead Plains of Long Island. 
The pine barrens of New Jersey were visited on July 28 and 29, 
and July 30 was devoted to a visit to Columbia University in 
the morning and to the New York Botanical Garden in the after- 
noon, the party cota for the West at midnight of that day. 
The route is by Niagara Falls, Chicago and vicinity, Lincoln, 
Nebraska, points in oo Utah, Washington, and California, 
reaching the Desert Laboratory of the Carnegie Institution at 
Tucson, Arizona ,on September 20. The program at t arden 
on July 30 in ‘nchided lunch at Dr. Britton’s house, an seine 
of the museu laboratories, library and herbarium, visits to 
the collection in “a greenhouses and to anumber of points in the 
grounds, escorted by members of the Garden staff, closing with 
