42 ANNUAL. REPORT SMITHSONIAN INSTITUTION, 192i 



securing fossils from that area; (2) in southern Kentucky, at the 

 instance of Dr. Frank Springer, in search of crinoids; (3) in the 

 Niagaran Plain and neighboring area in Ohio, obtaining information 

 as to the region from which the Austin collection was secured ; and 

 (4) in northern Tennessee, again under the geological survey of 

 that State, mapping the geology and securing data toward a report 

 on the stratigraphy of the State. 



The Upper Cambrian and Ozarkian systems, particularly in Wis- 

 consin, were the subject of the field work in the summer of 1923 of 

 Dr. E. O. Ulrich, associate in paleontology. 



The reported discovery of fossil footprints on excavations in the 

 red Triassic shale near Aldie, Va., were investigated by C. W. Gil- 

 more, and numerous dinosaurian footprints were observed at several 

 distinct horizons. A fine slab of these was obtained. 



Shorter collecting trips to the Miocene deposits along Chesapeake 

 Bay by N. H. Boss and to near-by localities by E. V. Shannon and 

 W. F. Foshag provided well-preserved cetacean remains from the 

 former and small representative collections of rocks, minerals, and 

 ores from the latter. 



The quarries at Deer Isle and Auburn, Me., were inspected by 

 Dr. George P. Merrill, head curator of geology, who also made a 

 geological trip into the northern part of that State. 



BUILDINGS AND EQUIPMENT 



For some years an additional building to house the National 

 Gallei-y of Art and the history collections of the United States 

 National Museum has been urgently needed. The removal of the 

 art and history collections would release space in the older buildings 

 that should provide for the growth of the other collections for years 

 to come. The executive and independent offices act for 1924, ap- 

 proved February 13, 1923, authorizes the Regents of the Smith- 

 sonian Institution to prepare preliminary plans for a suitable fire- 

 proof building with granite fronts for the National Gallery of Art 

 (including the National Portrait Gallery) and for the history collec- 

 tions of the United States National Museum, to be erected when 

 funds from gifts or bequests are in the possession of the regents. 

 A site for the building is designated in the Mall immediately east of 

 the Natural History Building. 



The National Gallery of Art Commission, which has for some time 

 been giving consideration to the adequate housing of the art collec- 

 tions, decided at a meeting on December 11, 1923, to raise by private 

 subscription $10,000 toward preliminary plans for this art and 

 history building, and that amount was soon subscribed. The Board 

 of Regents of the Institution accordingly on February 14, 1924, 



