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Dr. William Trelease, recently director of the Missouri Botan- 
ical Garden, has been appointed professor of ee in the 
paige of Illinois at Urbana. He succeeds Dr. T. J. Burrill, 
eti s professor, dean, and ce has been 
ee ae ee institution since 1868 
Mr. G. Claridge Druce, M.A., F.L.S., ex-mayor of Oxford, 
curator of the Fielding Herbarium of the University of Oxford, 
author of “List of British Plants,” ‘Flora of Berkshire,” and 
many other works relating to the British flora, was a visitor at 
the Garden on April 24. 
Mr. Walter T. Swingle, of the Bureau of Plant Industry, 
recently spent several days at the Garden, studying specimens of 
Citrus in the herbarium 
Dr. Charles Thom, of the United States Department of Agri- 
culture, recently spent several days at the Garden consulting 
various publications in the library. 
Professors Mel T. Cook and M. A. Blake, with several members 
of the senior class of Rutgers College, spent May 2 at the Garden, 
visiting the conservatories and the experimental garden, 
During the spring, numerous cases of variation have appeared 
in the beds of tulips grown at the Garden. These variations are 
of three kinds: changes in color, changes in shape, and changes 
in the character of the floral parts. In a bed of 250 flowering 
bulbs of the variety ‘‘ Yellow Prince” one flower had in one of 
the parts of the perianth a segment of dark red. This was the 
only variation found in the yellow-flowered varieties. In the 
beds of ‘Crimson King” and ‘Prince of Austria,” thirty flowers 
showed more or less of yellow in streaks. In some cases only a 
few small streaks were present. In other cases the flower could 
be described as yellow with a few red streaks. Many of these 
