112 REPORT OF NATIONAL MUSEUM, 1921. 
Several groups of school children from private and public schools 
of Washington and Alexandria, Va., were given talks on the textile 
collections by the curator. He also arranged for lectures and demon- 
strations at the Museum to the classes in home economics and tex- 
tiles at George Washington University and the University of Mary- 
land. 
Names of special cooperators.—Special thanks are due to Dr. 
Murray Galt Motter, librarian of the Hygienic Laboratory, Wash- 
ington, D. C.; to Dr. W. A. Dewey, registrar of the homeopathic 
medical school, University of Michigan, Ann Arbor, Mich.; Dr. 
Caswell] A. Mayo and Mr. Charles G. Merrell, of Cincinnati, Ohio; 
Dr. J. Norman Taylor, chemist, Fungicide Board, Department of 
Agriculture; Mr. T. J. Keleher and Dr. Norman C. Glover, of Wash- 
ington, D. C., for their splendid cooperation in arranging for the 
contribution of specimens to the Museum, and for making use of 
every opportunity of presenting the needs of the Museum to persons 
and professional bodies in a position to render assistance. 
RESEARCHES ELSEWHERE AIDED BY MUSEUM MATERIAL. 
Dr. H. E. Howe, of the National Research Council, was furnished 
with small samples of mercerized cotton, wool, flax, silk, and artificial 
silk for investigations with the microscope. 
The Microchemical Laboratory of the Bureau of Chemistry, De- 
partment of Agriculture, was also supplied with fiber specimens for 
microscopical work. 
The firm of Darby & Darby, patent attorneys of New York City, 
was furnished a sample of a silk fabric of special construction for 
use in a patent investigation. 
Mr. M. D. C. Crawford, research editor for Women’s Wear, a 
trade publication, was supplied with 11 photographs of historical 
textile machinery for use in a study of the development of certain 
phases of the textile industry. 
At the request of the management of the International Silk Expo- 
sition, held in the Grand Central Palace, New York City, February 
7 to 12, 1921, the Museum loaned to the committee on historic ex- 
hibits several specimens concerned with the early manufacture and 
use of silk in this country. 
DISTRIBUTION AND EXCHANGE OF SPECIMENS. 
A set of small samples of American woods, representing 18 species, 
were sent as an exchange to the New York State College of Forestry, 
Syracuse, N. Y., at the request of Dr. H. P. Brown, professor of 
wood technology, for use by his graduate students in certain research 
work. 
