122 REPORT OF NATIONAL MUSEUM, 1914. 



logue, by the aid of Avliich any particular lot of Tertiary fossils can 

 readily be found, is in course of preparation. Additional room space 

 allotted to Dr. T, W. Vaughan also made requisite a complete rear- 

 rangement of the Tertiary corals, which was carried forward as far 

 as cases were available. 



The amount of research work accomplished was extensive. Secre- 

 tary Charles D. Walcott completed and published his studies of the 

 Dikelocephalina? trilobites, and on the Cambrian and its problems 

 in the Cordilleran region. He also continued work on the pre-Cam- 

 brian Algonkian algal flora of North America, which has yielded 

 unexpected results. Dr. William H. Dall finished a preliminary 

 identification of the Tertiary fossils from the Panama Canal Zone, 

 made good progress with his investigation of the Pacific coast Ter- 

 tiary, and had about ready for submitting a monograph on the mol- 

 luscan fauna of the Orthaulax pugnax zone of Florida. 



Mr. Frank Springer completed the descriptive matter for the 75 

 quarto plates illustrating his monograph on the Crinoidea -flexihilia, 

 and brought the preparation of the text to such a point that he soon 

 expects to send it to tlie press. The illustrations for his monograph 

 on the crinoid genus Scyphocrinus^ which had been delayed, were 

 finished, and the work will shortly be ready for publication. With 

 these important investigations disposed of, Mr. Springer expects to 

 continue his studies on the Silurian crinoids of western Tennessee, 

 the classic locality from which he has large collections. The illus- 

 trations for a large part of this work have already been made. Prof. 

 William B. Clark, of Johns Hopkins University, and Dr. M. W. 

 Twitchell, assistant State geologist of New Jersey, have collaborated 

 on a monograph based mainly upon Museum specimens of the Meso- 

 zoic and Cenozoic Echinodermata of the United States, which will 

 be published by the Geological Survey. 



Dr. E. O. Ulrich, associate in paleontology, spent considerable time 

 in a study of the early Silurian collections of the Museum, the re- 

 sults of which have been embodied in a bulletin entitled " The Medina 

 and Clinton Formations of the Appalachian Valley," which has been 

 offered to the Geological Survey for publication. Dr. Ulrich and 

 the curator also prepared the text for the Cincinnati Folio of the 

 Survey, in which many Museum specimens will be illustrated. 



The principal contribution by the curator. Dr. R. S. Bassler, was 

 in the form of a bulletin of 500 or more pages entitled " Bibliography 

 and Synonymy of American Ordovician and Silurian Fossils," which 

 contains, in addition to the matter indicated by the title, a register 

 of the Museum's rich type collection of these two periods. The 

 curator also completed a report on the early Silurian Bryozoa and 

 Ostracoda of the island of Anticosti, Canada, based upon specimens 

 now the property of the National Museum, which will be published 



