32 REPORT OF NATIONAL MUSEUM, 1903. 



W. B. Hemsley on tlie ^enus JuUania Avere printed. Doctor Rose also 

 continued work on the Crassulacete of North America conjointly with 

 Doctor Britton, and completed a preliminary paper relating to that 

 group of plants. Mr. C. L. Pollard contributed a number of notes 

 to the Plant World, and described two new violets from the United 

 States. With Mr. T. D. A. Cockerell lie also published descriptions 

 of four new plants from New Mexico. Mr. W. R. Maxon continued 

 his studies on the Museum collection of ferns, and Mr. Edward S. 

 Steele completed a monograph on a section of the genus Lacinlaria. 



Access to the collections in biology were accorded during the year 

 to a considerable number of visiting naturalists. The meetings of 

 the American Association for the Advancement of Science, the Society 

 of American Naturalists, and other affiliated societies during convoca- 

 tion week brought together in Washington many prominent investi- 

 gators, and while their time was limited, some of them took advantage 

 of the opportunity to examine specimens in the line of their specialty. 

 The committee on nomenclature of the American Ornithologists' Union 

 during its meeting from April 16 to 18 made extensive use of the 

 bird collection in determining the status of North American species. 

 Among individual ornithologists to whom the same privilege was 

 given were Prof. W. W. Cooke, Mr. E. W. Nelson, Mr. H. C. Ober- 

 holser, and Mr. W. H. Osgood, of the Department of Agriculture; 

 Mr. Outram Bangs, of Boston; Dr. J. Dwight, jr., of New York City; 

 and Mrs. Florence Merriam Bailey, of Washington. 



Mr. Thomas Barber, of Cambridge, Massachusetts, was here for 

 some time studying the Old World chameleons, which he proposes to 

 monograph. Among students of entomology who conducted work 

 at the Museum were Dr. W. J. Holland, Director of the Carnegie 

 Museum, Pittsburg, Pennsylvania; Prof. John B. Smith, of Rutgers 

 College, New Brunswick, New Jersey; Dr. James A. G. Rehn and Mr. 

 J. Chester Bradley, of Philadelphia, Pennsylvania; Mr. H. H. Ballou, 

 of Amherst, Massachusetts, and Dr. Walter Horn, of Berlin, Germany. 



Prof. W. P. Ha}^ of Howard University, Washington, continued 

 his studies upon crayfishes and other fresh-water crustaceans, and 

 completed descriptions of the species collected by himself at Mam- 

 moth Cave, Kentucky, and Nickajack Cave* Tennessee, and by Dr. 

 C. H. Eigenmann in Cuba. Prof. G. I. Hamaker, of Trinity College, 

 Durham, North Carolina, examined the specimens of Cerianthus; Miss 

 Katherine J. Bush, of the Peabody Museum of Yale University, cer- 

 tain type specimens of Annelids, and Dr. S. J. Holmes, of the Uni- 

 versity of Michigan, certain species of Amphipod crustaceans. 



The principal visiting botanists have been Dr. N. L. Britton, Direc- 

 tor of the New York Botanical Garden; Dr. L. M. Underwood, of 

 Columbia University, New York City; Mr. Theodor Holm, of Brook- 

 land, District of Columbia; and Dr. E. L. Greene, of the Catholic 

 University, Washington. 



