OUTLINE MAP OF ARCTIC REGIONS 

 Prepared under direction 0/ R. A. Harris, cotidal mathematician of the United States Coast and Geodetic Survey 

 The map indicates the theoretical position, size (500,000 srjuare miles) arid shapo of an uncharted Arctic continent, or archipelago of large islands. It shows also the 

 direction! and houri of the tides and the rise in feet and tenths — which tidal facts constitute a proof of the existence of the unknown land 



