REPORT OF NATIONAL MUSEUM, 1923. 95 



upon material obtained by his field collectors in Tennessee and 

 Indiana — a work begun several j^ears ago ; the progress made during 

 this year was largely in the preparation of drawings for the numer- 

 ous plates ; two papers are now in press, one upon the crinoid family 

 Catillocrinidae, the other entitled "A New Tertiary Crinoid from 

 the West Indies," this being the first stalked crinoid of Tertiary age 

 to be described from the western hemisphere ; other researches upon 

 unusual forms of fossil crinoids are now about completed. 



A report upon a collection of Pleistocene fossils, by T. S. Oldroyd 

 of Stanford University has, with the author's permission, been re- 

 vised by Dr. W. H. Dall and submitted for publication. Dr. Mary 

 J. Rathbun has worked up the fossil crustaceans from the Republic 

 of Haiti, collected by W. P. Woodring and party in 1921. The 

 results have been published in the Proceedings. 



Dr. T. W. Stanton has continued his researches on the Comanche 

 series of the Cretaceous in Texas, and Dr. F. H. Knowlton has 

 begun an investigation of the fossil plants associated with the lavas 

 at Spokane, Wash., and in the Coeur d'Alene district, Idaho, in an 

 endeavor to ascertain the age of the great Columbia lava flows. 

 Doctor Knowlton has also continued his studies on the plants of the 

 Early Tertiary (Fort Union) formation of the west. 



Owing to Mr. Gihnore's absence in Canada for four months of 

 the past year, no papers based on Museum material were prepared 

 for publication. His monographic study of the fossil lizards of 

 North America was continued as time was available. His studies 

 of the collections at the University of Alberta and at the Geological 

 Survey of Canada brought to light much that was new to science, 

 and resulted in the preparation of several papers. 



Dr. J. W. Gidley's time has been devoted chiefly to the study of 

 material representing two important groups of mammals, glypto- 

 donts and mastodons collected in the San Pedro Valley, Ariz., two 

 years ago. The completion of this work is expected early in the 

 next fiscal year. In addition Doctor Gidley has completed a study 

 of a new genus based on Ursus primaevus Gaillard. He has also 

 continued work on the fossil mammals of the Cumberland Cave 

 deposits, and reports progress on studies necessary for the systematic 

 arrangement of the study and storage collections of mammals and 

 fishes. 



As heretofore students and investigators from other institutions 

 have had free access to the collections, and been supplied with such 

 materials as were available to aid them in their studies. Several 

 of the petrologists of the Geological Survey have taken advantage 

 of the opportunities offered in using both the collections and the 

 laboratories, and several days were spent by Dr. Harry von Ecker- 

 mann, of Ljusne, Sweden, and Jack Hyland, of Poopoo, Bolivia, in 

 examining both mineral and ore collections. 



