World Air Routes. 'Nordic Projection' By John Bartholomew, M.C., LL.D., 1:60,000,000. North Polar Basin, Gnomonic Projection, Scale at Centre 1:120,000,000 ; North Pacific Ocean, 'Nordic' Projection, Scale at 1:150,000,000 ; The Antipodes, Zenithal Equidistant Projection, Scale 1;240,000,000. Edited by John Bartholomew, M.C., LL.D. The Geographical Institute Edinburgh. Copyright, John Bartholomew & Son, LTD.
