VIII REPORT OF NATIONAL. MUSEUM, 1924 



Department of Biology — Continued. 



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

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

 todian of the rotatoria ; Mrs. Harriet Richardson Searle, collaborator ; 

 Max M. Ellis, collaborator. 

 Division of Mollusfos: 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. 

 Section 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. 

 Associate in Marine Sediments : T. Wayland Vaughan. 

 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. V. 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 Stratigraphic Paleontology : R. S. Bassler, curator ; Charles E. 

 Resser, associate curator; Jessie G. Beach, aid. 



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



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



collection. 



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



ton, custodian of Mesozoic plants; Edwin R. Pohl, aid. 



Division of Vertebrate Paleontology: Charles W. Gilmore, curator; James 



W. Gidley, assistant curator of mammalian fossils. 

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

 Associate in Petrology : Whitman Cross. 

 Department of Arts and Industries : 

 William deC. Ravenel, director. 

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

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

 technology. 

 Associate in Mineral Technology: Samuel S. Wyer. 



Division of Textiles: Frederick L. Lewton, curator; Mrs. E. W. Rosson, aid. 

 Section of Wood Technology: William M. N. Watkins, assistant 

 curator. 



