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N^ational G^jl^i ai>bi 



Magazine 



AN ILLUSTRATED MONTHLY 



Editor: JOHN HYDE 



Associate Editors 

 A. W, GREELT W J McGEE HENRY GANNETT 



'- C. HART MERRIAivr EI>IZA RUHAMAH SCIDMOR'E 



MODIFICATION OP THE GREAT lKkES BY" EARTH [Vjuvt.ivir.LN 

 •With diagrams. ' G. K. QILBER i 



HE TpRONTO MEE . NG OF THE BRITISH ASSOCIATION FOR THF, 

 ADVANCEMENT OF SCIENCE. 



HE GREAT UNMAPPED AREAS ON THE EART3'S SURFACE AWAl 

 ING TaE EXPLORER AND; GEOGRAPHER. J.. SCOTT — "" 



HE COMPASS IN MODErW NAVIGATION 



ITBLIiJ^ED 13 Y 1 



UK AMKliKAN Nkw.s v. i > ' 



P.VKi.s: r>i 



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