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botanical institutions of the United States in connection with the 
projected enlargement of the plant disease work at Rothamsted. 
Mr. Charles F. Hills, secretary of the Chicago Academy of 
Sciences, visited the Garden on July 20. The authorities of the 
museum of the Academy are contemplating an expansion of its 
work along certain lines, and Mr. Hills is visiting various 
museums and botanic gardens in the East in order to learn at 
first hand of their scope, methods, and equipment. 
In response to a request from the New York City Board of 
Health, the Botanic Garden, in July, supplied specially prepared 
mounted specimens of poison ivy (with five-fingered ivy), rag- 
weed (Ambrosia trifida), and jimson weed (Datura stramonium) 
to be used in the popular educational work of the Board concern- 
ing these poisonous weeds. 
Visitors to the Botanic Garden since the last issue of the REcorD 
include Mr. H. Guthrie Smith, Napier, New Zealand (April 2), 
Dr. J. I. Lauritzen and Dr. F. G. Robb, Bureau of Markets, 
Washington, D. C. (April 22), Prof. L. H. Pammel, Iowa State 
College, Ames, Iowa (May 5), Mr. Harry A. Norton, who has 
one of the largest collections of Lilacs in Canada, at Ayers Cliff, 
Prov. Quebec (June 3), Dr. F. Lamson Scribner, Washington, 
D. C. (June 12), Mr. John C. Wister, Philadelphia, president of 
the American Iris Society (July 16), Mr. W. M. Mann, U. 5. 
Dept. Agr., Washington (July 17), Dr. Adolph J. A. Friedholm, 
professor of plant pathology, University of Porto Rico, Mayaguez 
(iuily23)),,and Dr ©..V. Piper, U. 5. Dept. Apr., Dr. Arthur 
Hollick, U. S. Geol. Survey, Washington, D. C. (Aug. 9), Prof. 
Yoshinari Kuwada, Imperial University, Kyoto, Japan, Mr. 
Eskichi Iso, Formosa, and Prof. E. M. East, Harvard University. 
Swans as scavengers—A pair of swans, to replace those which 
escaped during the war, has been presented by the Lord Cham- 
berlain to the Royal Botanic Society of London. These are not 
merely for ornamental purposes, writes a London Daily Chronicle 
