REPOBT OF NATIONAL MUSEUM, 1920. 97 



Zoology, University of California; Dr. R. W. Shufeldt, Washington 

 City; and Mr. Arthur T. Wayne, Mount Pleasant, South Carolina. 

 From the division of reptiles and batrachians specimens were 

 loaned to Miss M. C. Dickerson and Mr. G. K. Noble, of the American 

 Museum of Natural History; Dr. Thomas Barbour, and Mr. EmmeU 

 R. Dunn, of the Museum of Comparative Zoology; and to Dr. F. X. 

 Blanchard, of the Museum of the University of Michigan. One speci- 

 men of fish was forwarded to Dr. Einar Koefoed, of the Zoological 

 Museum, Copenhagen, Denmark. A larger number of insects thai! 

 usual were sent to outside entomolgists. the larger shipments being 

 directed to Dr. F. F. Laidlaw, Hyefield, Devon, England (dragon- 

 flies) ; Prof. James S. Hine, Columbus, Ohio (Diptera) ; Mr. L. II. 

 Taylor, Bussey Institution, Boston, Massachusetts (cuckoo wasps) ; 

 Mr. Clarence F. Mickel, University of Nebraska (velvet ants) ; Mi-. 

 II. M. Parshley, Smith College, Northampton, Massachusetts (Ilemip- 

 tera) ; and Mr. J. R. Malloch, Urbana, Illinois (Diptera). Marine 

 invertebrates were sent to Dr. L. A. Borradaile, Selwyn College, 

 Cambridge. England (crustaceans); Dr. Leo J. Cole. University of 

 Wisconsin (pyenogonids) ; Mr. Frits Johansen, Geological Survey, 

 Ottawa, Canada (phyllopods) ; and to Dr. II. A. Pilsbry, Academy of 

 Natural Sciences, Philadelphia. Pennsylvania (African mollusks). 

 The number of specimens of plants lent to institutions or to indi- 

 viduals outside of Washington for study during the year was con- 

 siderably larger than for the past two years, namely, 4,48:2. Of these 

 the following deserve special notice: 222 specimens of Polypodium 

 lent to the Gray Herbarium for study by Mr. C. A. Weatherby. who 

 is engaged in a monographic study of the difficult group of Poly- 

 podium Janceolatum ; 44 specimens of Mikania lent to the Gray Her- 

 barium for study by Prof. B. L. Robinson, who is engaged upon a 

 revision of the South American members of this genus; 175 speci- 

 mens of Ruljiaceae lent to the College of Hawaii, Honolulu, Hawaiian 

 Islands, for study by Prof. J. F. Rock, for use in connection with his 

 monographic study of the Hawaiian members of this family; 185 

 North American specimens of Carets lent to Mr. K. K. Mackenzie, 

 Maplewood, New Jersey, for study in connection with his mono- 

 graphic work upon the genus Carer; 128 specimens of Scrophularia- 

 ceae lent to the Missouri Botanical Garden for study by Mrs. Adele 

 Lewis Grant, chiefly in connection with a monograph of the North 

 American species of Muaulus; 541 specimens of Lesquerella and 

 Synthlipsis lent to the Missouri Botanical Garden for study by Mr. 

 F. B. Payson, who is engaged upon a revision of these two genera; 

 280 specimens lent to the New York Botanical Garden for study by 

 Dr. P. A. Rydberg, the greater part of these belonging to the difficult 

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