EEPOKT OF NATIONAL MUSEUM, 1910. 41 



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 smce 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- 

 tacese 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 Avith the subject 

 of their inquiry: Dr. Ezra Brainerd, of ^liddlebury, 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 Cratsegus; 

 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 

 Washmgton, the subfamily Solanaceae. Members of the scientifix 

 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 

 naturahsts and paying its share of the expenses, the collections 



