Museum's Explorations 31 



staff of the United States Geological Survey, has just com- 

 pleted his monograph, "Titanotheres of Western America," on 

 which he has been engaged for nineteen and a half years. 



About $75,000 has been expended since 1910 on South 

 American exploration and publication through successive 



expeditions led by Chapman, Roosevelt, 

 South Cherrie, Miller and Richardson. Our senior 



Exploration Curator, Dr. J. A. Allen, has produced a series 



of classical papers on South American mam- 

 mals. Expeditions into the interior bear the name of 

 Theodore Roosevelt. Doctor Chapman's "Distribution of 

 Bird-Life in Colombia," recently awarded the Daniel Giraud 

 Elliot Medal by the National Academy of Sciences, is also 

 a classic and leads to similar volumes on the birds of Peru 

 and of Chile. The materials and collections will fill our 

 South American Hall. 



We have thus far expended $190,000 on African explora- 

 tion, research and publication. Unrivaled collections of 



reptiles, birds and mammals are in storage await- 

 African _ ing the construction of the African Hall, as the 



and Research resu ^ °f the courageous and untiring field work 



of a succession of explorers, namely, Roosevelt, 

 Tjader, Akeley, Rainsford, Barnes, Rainey, Lang and Chapin. 

 The two last named have rendered monumental service to 

 African natural history in bringing out the most complete and 

 the most perfectly preserved collection which has ever come 

 from Africa, with precise field notes and 9,500 photographs. 

 The results are being issued in a series of twelve volumes en- 

 titled The Zoology of the Belgian Congo. To these volumes, 

 not only our own but other eminent scientists of the country 

 are contributing, notably Director W. J. Holland, of the Car- 

 negie Museum, Professor William Morton Wheeler of Har- 

 vard University, and Dr. Henry A. Pilsbry of the Academy of 

 Natural Sciences of Philadelphia. The first two Congo 

 volumes were recently presented to the King of the Belgians 



