LIST OF COLORED MAPS 
PAGE 
PANAMA CanaL . .@ 
CoaL FIELDS OF THE UNITED STATES . 
PHYSI0GRAPHIC REGIONS OF THE UNITED STATES . . . | . 
PETROLEUM AND NATURAL-GAs FIELDS IN THE UNITED STATES 
CHIEF SUBMARINE CABLES OF THE WORLD . . . . ‘wo. . 252 
AREAS COVERED BY TOPOGRAPHIC SURVEYS TO THE YEAR 1927. . . 258 
HYDROGRAPHIC SURVEYS OF THE COASTS OF THE WORLD 260 
LIGHTHOUSE MAP OF THE CHESAPEAKE REGION . 262 
LINES OF MAGNETIC DECLINATION 264 
RESOURCES oF CANADA . . . 290 
SUNSHINE IN SUMMER MONTHS IN CANADA 292 
TRANSCONTINENTAL RAILWAY SvYsTEMS OF CANADA v4 302 
TERRITORIES OF THE BRITISH EMPIRE AND THE UNITED STATES 318 
AFRICA . . ., . sv ob me 414 
INTERCONTINENTAL RaiLway, NORTH AND SOUTH AMERICA . . . 422 
ROUTES AND CENTERS OF ANCIENT MEDITERRANEAN COMMERCE . . 440 
VENETIAN AND HANSEATIC ROUTES AND CENTERS OF TRADE . ., . 444