REPORT OF NATIONAL MUSEUM, 1910. 4] 
Hofmuseum at Vienna. Specimens numbering 3,256, all from North 
America and mostly from the United States, were purchased. 
Fifty steel-covered insect-proof cases, containing 1,200 pigeonholes, 
were added to the equipment of the herbarium, increasing its comple- 
ment of cases to 568 and of pigeonholes to 12,668, and for the first time 
providing suitable accommodations for the entire herbarium. The 
permanent collection now contains 385,374 specimens. The number 
of specimens mounted was 51,500, being more than three times as 
many as in the preceding year and more than twice as many as in any 
year since 1899 except 1904. Of this number, 48,000 were done by 
contract. About 30,000 sheets were stamped, recorded, and dis- 
tributed to their appropriate places, while about 16,000 mosses and 
liverworts were also distributed or made ready for the herbarium. 
Dr. J. N. Rose, associate curator, continued his studies of Mexican 
and Central American plants, and also his investigations on the Cac- 
tacee in collaboration with Dr. N. L. Britton, of the New York 
Botanical Garden. Mr. W. R. Maxon, assistant curator, continued 
work on North American ferns, and spent one month at the New York 
Botanical Garden in that connection. 
One thousand and thirty-eight plants were lent to botanists, the 
principal loan consisting of Central American plants to Capt. J. 
Donnell Smith, of Baltimore. The foregoing figures, however, are 
exclusive of material borrowed by the botanists of the Department of 
Agriculture. Among visitors to the Museum who came to examine 
specimens the following may be mentioned, together with the subject 
of their inquiry: Dr. Ezra Brainerd, of Middlebury, Vermont, the 
violets, of which the herbarium contains a very large series; Miss 
Alice Eastwood, of the California Academy of Sciences, California 
plants; Mr. W. W. Eggleston, of New York, the genus Cratxgus; 
Prof. J. W. Harshberger, of the University of Pennsylvania; Mr. E. 
L. Morris, of Brooklyn, New York, the genus Plantago; Dr. P. A. 
Rydberg, of the New York Botanical Garden, plants of northwestern 
America; Rev. Dr. Julius A. Nieruwland, of the University of Notre 
Dame, Indiana, Indiana plants; Dr. J. K. Small, of the New York 
Botanical Garden, plants of North America; Miss Mary Wilkins, of 
Washington, the subfamily Solanaceze. Members of the scientific 
staff of the Department of Agriculture consulted the herbarium fre- 
quently. 
Explorations.—The most important exploration of the year and 
the one from which the Museum profited most richly was that known 
as the Smithsonian African Expedition under the direction of Col. 
Theodore Roosevelt. This expedition was organized by Col. Roose- 
velt, through whose invitation the Smithsonian Institution was 
enabled to take part, with the understanding that by furnishing the 
naturalists and paying its share of the expenses, the collections 
