70 REPORT OF NATION AL MUSEUM, 1922. 



Pilsbry, Academy of Natural Sciences, Philadelphia, Pa.; Dr. 

 Charles C. Nutting, State University, Iowa; Dr. Raymond C. Osburn, 

 Ohio State University; Prof. F. Payne, University of Indiana; 

 Capt. F. A. Potts. Cambridge, England; Prof. Frank Smith, Uni- 

 versity of Illinois; Dr. W. M. Tattersall, Victoria University, Man- 

 chester, England; Dr. Aaron L. Treadwell, Vassar College; Dr. 

 Willard G. van Name. American Museum of Natural History; and 

 Dc. C. B. Wilson, Westfield, Mass. 



The division of mollusks has been visited by the following persons, 

 whose work, though primarily directed by outside interests, has 

 resulted in much benefit to the Museum : Dr. C. W. Cooke, Dr. W. P. 

 Woodring, Dr. Julia A. Gardner, W. C. Mansfield, all of the United 

 States Geological Survey; Prof. T. D. A. Cockerell, University of 

 Colorado; Charles T. Simpson, Little River, Fla. ; Calvin C. Good- 

 rich, Detroit, Mich. ; Mr. and Mrs. W. IT. Golish, Southwest Museum. 

 Los Angeles, Calif.; Dr. G. Dallas Hanna, California Academy of 

 Sciences; Dr. William G. Vinal, Providence, R. I.: Dr. R. W. 

 Shufeldt, Washington, D. G; Dr. C. Montague Cooke, Bishop 

 Museum, Honolulu, Hawaii ; Dr. Frank Potts, Cambridge University. 

 England ; J. Edward Hoffmeister, Johns Hopkins University. The 

 same division is indebted for help in various ways to the Navy 

 Department for detailing a sea plane for Doctor Bartsch's use in 

 Florida, and to the following individuals for important assistance in 

 various directions: Dr. J. W. Martin, Kirksville, Mo.; Dr. E. M. 

 Bluestone, New York City; Dr. Maurice Cossmann, Paris; Dr. 

 F. Haas, Frankfort on the Main; Guy Robson, London; Dr. H. A. 

 Pilsbry, Philadelphia; Prof. Job. Thiele, Berlin; C. J. Maynard. 

 West Newton, Mass. ; T. G. Townsend, New York City ; the American 

 Wood Preservers' Association (particularly A. M. Taylor, Port 

 Reading, N. J., the former president) ; Dr. George A. Soper, New 

 York City; Dr. E. M. Kindle, Ottawa; the Provincial Museum, 

 Halifax; James Zetek, Ancon, Panama; A. Reyne, Paramaribo, 

 Dutch Guiana; A. B. Ilsley, Charlotte, N. G; Bureau of Chemistry, 

 United States Department of Agriculture. In the division of 

 echinoderms investigations have been carried on by Prof. Walter K. 

 Fisher, of Hopkins Marine Station, Pacific Grove, Calif. (North 

 Pacific starfishes), and Prof. Hiroshi Oshima, Department of Agri- 

 culture, Kyushin Imperial University, Fukuoka. Japan (holo- 

 thurians). Echinoderms transferred from the Bureau of Fisheries 

 had been determined by Alexander Agassiz, Hubert Ludwig, and 

 Hubert Lyman Clark. Among the professional botanists from else- 

 where than Washington who have worked in the herbarium during 

 the year are the following: Dr. B. L. Robinson, curator of the Gray 

 Herbarium, Cambridge, Mass.; Dr. Francis W. Pennell, Academy 

 of Natural Sciences, Philadelphia; Dr. J. H. Barnhart, of the New 



