REPORT OF THE SECRETARY 41 



Dr. Charles E. Resser, under the auspices of the United States 

 Geological Survey, accompanied Dr. E. O. Ulrich in an investiga- 

 tion of the Cambrian and Ordovician rocks of the Valley of Vir- 

 ginia during May, 1923, and secured important strati graphic col- 

 lections. Dr. Ulrich with his assistant, Mr. E. D. Mesler, continued 

 field researches during the month of June, studying various sections 

 of the Appalachian Valley in eastern Tennessee. During his trip 

 to the International Geological Congress at Brussels in the summer 

 of 1922, Doctor Ulrich visited important Paleozoic localities in va- 

 rious European countries and presented to the Museum all of the 

 material collected. 



While traveling in Europe in the summer of 1922, Miss Jessie G. 

 Beach was detailed to study collections in various museums, and to 

 consult with European scientists regarding matters of interest to the 

 Museum. Miss Beach visited museums in France, Italy, Germany, 

 Belgium, England, and Scotland, listing and sketching various type 

 specimens of unusual interest, and studying methods of installation 

 and labeling. 



Mr. C. W. Gilmore, under the auspices of the Museum, made a 

 trip to Roy, N. Mex., to investigate a reported discovery of elephas 

 remains. The specimen proved to be valueless for museum purposes, 

 and from that standpoint the trip was a failure. Mr. N. H. Boss 

 made several short collecting trips to the Miocene deposits along 

 Chesapeake Bay in search of fossil remains. As in previous years 

 these trips were productive in the recovery of well-preserved ceta- 

 cean remains. 



Late in the fiscal year Mr. Gilmore and Mr. Boss were detailed to 

 excavate remains of dinosaurs in the Dinosaur National Monument, 

 Utah, an undertaking which has long been awaiting a favorable op- 

 portunity for its consummation. 



Assistant curators Foshag and Shannon on their own initiative 

 made a brief trip to old copper mines in Carroll County, Md., a 

 district which despite its proximity to Washington was practically 

 unrepresented in the collections. A large suite of copper and iron 

 ores and associations was secured. A day was likewise spent at the 

 diabase quarry near Belmont Park, Va. So much material of interest 

 was found that Mr. Shannon conducted the Washington Mineralogi- 

 cal Society over the ground on their annual field trip. The speci- 

 mens collected have been turned over to the Museum. The limestone 

 quarry at Leesburg, Va., was also visited and interesting mineralogi- 

 cal material secured. 



Investigations by Miss Frances Densmore among the Yuma In- 

 dians of Arizona and some tribes in northern Mexico for the Bureau 



