REPORT OF NATIONAL MUSEUM, 1913. 77 



arranged; the card catalogue of all Paleozoic fossils was brought down 

 to date; the large number of thin sections, many of which remained on 

 the rough glass sUdes on which they were made, were transferred to 

 fresh slides and properly covered and labeled; and the collection 

 of Cambrian brachiopods described by Secretary Walcott in Mono- 

 graph 51 of the Geological Survey was arranged and partially labeled. 

 Some 50 boxes of material which had been in storage were opened 

 and their contents appropriately assigned. ^Ir. Frank Springer 

 gave generously of liis time to the classification and arrangement of 

 the large collection of fossil echinoderms, of wliich about one-third, 

 fiUing over 300 standard drawers, had been revised by the end of the 

 year. The Tertiary collections, under Dr. WiUiam H. Dall, were also 

 in course of revision looking to the improvement of their installation. 

 Dr. Charles D. Walcott, Secretary of the Smithsonian Institution, 

 continued his studies of the Lower and Mddle Cambrian faunas of the 

 Canadian Rockies, paying particular attention to the finely preserved 

 material from the Burgess shale at Field, British Columbia. He 

 finished and pubhshed his researches on the Upper Cambrian fauna 

 of New York, and had well advanced a monograph on the trilobite 

 genus DicellocepJialus. Dr. R. S. Bassler, curator of the division 

 of paleontology, conducted researches in preparation of a monograph 

 on the bryozoa of the American Tertiary, which is expected to occupy 

 him for at least another year. He completed an article based on a 

 new exhibit of fossil crinoids and prepared the faunal and illustra- 

 tion sheets for the Cincinnati Foho of the Geological Survey. Mr. 

 Frank Springer, associate in paleontology, carried well toward com- 

 pletion his monograph on the Crinoidea Jlexihilia, the numerous 

 quarto plates for which were finished, and had nearly ready for pub- 

 lication a monograph on the crinoid genus Scyphocrinus. He also 

 had in preparation an article on the pecuHar group of Cremacrinidse. 

 Dr. William H. Dall, associate curator in charge of the Cenozoic col- 

 lection, completed a study of the Ohgocene deposits of Tampa, Fla., 

 and had nearly finished a description of the new brackish water 

 fauna of the Satilla River of Georgia, and of Alexander, Tex. He 

 was also engaged in working up the Tertiary fauna of western America 

 and devoted considerable attention to that of the Panama Canal 

 Zone in collaboration with the geologist of the Isthmian Canal Com- 

 mission. 



Vertebrate 'paleontology. — Through the addition of over 400 speci- 

 mens, representing many new genera and species, to the already 

 important collection of rare early Tertiary (Fort Union) mammals 

 from Sweet Grass County, Mont., this section is now in possession 

 of a sufficient variety of material to make possible an intelligent 

 study of the fauna of that geological horizon. In Pleistocene cave 

 deposits near Cumberland, Md., ^Mr. J. W. Gidley collected over 100 



