For a number of years Mr. Ellsworth was connected with the 

 exploratory survey party sent out by the Grand Trunk Pacific 

 Railway to explore a route for a transcontinental railway line across 

 Canada. His interest in surveying led him to spend a winter in 

 the School of Surveying of the Royal Geographical Society, London. 

 In 1924 he took part in a geological expedition from Johns Hopkins 

 University under the leadership of Dr. Joseph T. Singewald, Jr., 

 to study the Peruvian Andes. His interest in Arctic exploration was 

 evinced by his support and participation as joint leader with Roald 

 Amundsen in the Amundsen-Ellsworth North Polar airplane flight 

 of 1925, and the Amundsen-EUsworth-Nobile transpolar flight of 

 1926. He has written, together with Amundsen, "First Crossing of 

 the Polar Sea," New York, 1927; "Our Polar Flight," New York, 

 1925- 



