REPORT OF NATIONAL MUSEUM, 1923. 21 



Company, for the preparation of a hall of dinosaurs similar to the 

 Museum exhibit. 



Similarly, earlier in the year, the Submarine Film Corporation 

 gave the employees of the Smithsonian bureaus a chance to see the 

 sub-sea film, "Wonders of the deep", through a private exhibition 

 of the reels in the Museum auditorium on December 13. 



The Smithsonian Relief Association and the Smithsonian aux- 

 iliary of the District of Columbia Chapter of the American Red 

 Cross Society held annual meetings, the former in the auditorium 

 and the latter in one of the committee rooms. The Smithsonian 

 branch of the Federal Employees Union No. 2 held three meetings in 

 the committee room. 



The most prominent scientific gathering of the year was the 

 annual meeting of the National Academy of Sciences, on April 23, 

 24, and 25, 1923, with public scientific sessions in the auditorium and 

 business sessions in the committee rooms, as customary. The first 

 evening was devoted to a lecture in the hall by Dr. W. W. Camp- 

 bell, entitled " Resume of results obtained by Crocker Eclipse Ex- 

 peditions from Lick Observatory," followed by a reception to Doctor 

 Campbell in the rotunda and the halls devoted to the National 

 Gallery of Art. 



Other speakers on the program of the National Academy and their 

 subjects were as follows : H. F. Osborn : " Important mammals and 

 reptiles recently discovered by the Third Asiatic Expedition in the 

 heart of Mongolia, and their significance " ; J. C. Merriam : "Asiatic 

 relationships of American Pliocene faunas " ; F. M. Chapman : " Pre- 

 liminary report on life zones of Ecuador " ; T, W. Vaughan : " Stud- 

 ies of the larger Tertiary Foraminifera from tropical and subtropi- 

 cal America " ; A. H. Clark : " Interrelationships of the higher inver- 

 tebrates " ; Ales Hrdlicka : " Present status of research on early man 

 in the Old World " ; C. B. Davenport : " Heredity of body build " ; 

 C. A. Kof oid : " Parasitism and evolution " ; J. G. Dickson : " The 

 nature of resistance to cereal seedling blight " ; F. L. Ransome : 

 "Ancient high-level pot-holes near the Colorado River " ; W. H. 

 Hobbs : " The evidence of recent tectonic movement within an area 

 of the western Pacific " ; W. M. Davis : " Geological overthrust and 

 underdrag," and "The marginal belts of the Coral Seas"; L. P. 

 Eisenhart : " Symmetric tensors of the second order whose first cova- 

 riant derivatives are zero " ; G. A. Bliss : " Birational transforma- 

 tions simplifying singularities of algebraic curves"; H. F. Blich- 

 feldt : " On the approximate solution in integers of a set of equations 

 of the first degree " ; Edward Kasner : " Properties of path curves 

 in the Einstein theory " ; M. T. Bogert : " The synthesis of new Cin- 

 chophen (Atophan) types," and "Researches in the thiazole field"; 



