1913 (April 19) autographed 2-page letter, on 'The University of Sydney' letterhead from J.W. Edgeworth-David to 'Silas' Wright regarding his application for the position of Chair of Physics at the University of Columbia. He also raises the issue of their unfinished discussions about the origin of the Ross Barrier, the character of Captain P.F. Evans and the planned visit of the British Association to Sydney in August 1914.