VIII REPORT OF NATIONAL, MUSEUM, 1923. 



Department of Biology — Continued. 



Division of Marine Invertebrates: Waldo L. Schmitt, curator; C. R. Shoe- 

 maker, assistant curator; James O. Maloney, aid; H. K. Harring, cus- 

 todian of tiie rotatoria ; Mrs. Harriet Ricliardson Searle, collaborator ; 

 Max M. Ellis, collaborator. 

 Division of Mollusks: William H. Dall, honorary curator; Paul Bartsch, 

 curator ; William B. Marshall, assistant curator ; Mary Breen, collab- 

 orator. 

 Section of Helminthological Collections : C. W. Stiles, custodian ; B. H. 

 Ransom, assistant custodian. 

 Division of Echinoderms : Austin H. Clark, curator. 



Division of Plants {National Herbarium) : Frederick V. Colville, honorary 

 curator; W. R. Maxon, associate curator; J. N. Rose, associate curator; 

 P. C. Standley, associate curator; Emery C. Leonard, aid; Ellsworth P. 

 Killip, aid. 



Section of Grasses : Albert S. Hitchcock, custodian. 

 Section of Cryptogamic Collections : O. F. Cook, assistant curator. 

 Section of Higher Algae : W. T. Swingle, custodian. 

 Section of Lower Fungi : D. G. Fairchild, custodian. 

 Sections of Diatoms : Albert Mann, custodian. 

 Associates in Zoology: C. Hart Merriam, W. L. Abbott, Mary J. Rathbun, 



David Starr Jordan. 

 Associate Curator in Zoology : Hugh M. Smith. 

 Associate in Botany: John Donnell Smith. 

 Collaborator in Zoology : Robert Sterling Clark. 

 Department of Geology : 



George P. Merrill, head curator. 

 Division of Physical and Chemical Geology (systematic and applied) : 



George P. Merrill, curator ; E. Y. Shannon, assistant curator. 

 Division of Mineralogy and Petrology: F. W. Clarke, honorary curator; 

 W. F. Foshag, assistant curator; Frank L. Hess, custodian of rare 

 metals and rare earths. 

 Division of Paleontology: R. S. Bassler, curator; Charles E. Resser, asso- 

 ciate curator ; Jessie G. Beach, aid. 



Section of Invertebrate Paleontology : T. W. Stanton, custodian of 



Mesozoic collection ; William H. Dall, associate curator of Cenozoic 



collection ; T. Wayland Vaughan, custodian of Madreporarian corals. 



Section of "Vertebrate Paleontology: Charles W. Gilmore, curator; 



James W. Gidley, assistant curator of fossil mammals. 

 Section of Paleobotany : David White, associate curator ; F. H. Knowl- 

 ton, custodian of Mesozoic plants. 

 Associates in Paleontology: Frank Springer, E. O. Ulrich. 

 Associate in Petrologj"^: Whitman Cross. 

 Department of Arts and Industries : 

 William deC. Ravenel, director. 

 Division of Mineral and Mechanical Technology: Carl W. Mitman, curator; 

 Paul E. Garber, aid ; Chester G. Gilbert, honorary curator of mineral 

 technology ; George W. .Spier, custodian of watches. 

 Associate in Mineral Technology : Samuel S. Wyer. 



