MAPS 



PAGE 



Map showing International Date Line 30 



Map showing Standard Time Belts 31 



Lines of Equal Magnetic Declination in the United States . . 35 



Region around the Magnetic Pole 36 



Heat Belts 135 



Isothermal Lines for January 136 



Isothermal Lines for July 137 



Isobaric Lines for January 140 



Isobaric Lines for July . . . . . . . . .141 



Wind Map for July and August 150 



Wind Map for January and February . . . . . .151 



Rainfall Map of the World 155 



Average Rainfall of the United States 158 



Cyclones and Anticyclones 1 72 



Mean Storm Tracks and Average Daily Movements . . 1 73 



Ocean Currents of the World . . . ... . . 280 



Nahant, Massachusetts . , . . * . . ... 297 



The Platte River . ... . . . . . . 335 



The Mississippi and Some of its Abandoned Meanders ... . 338 



Incised Meanders (Government Contour Map), colored . facing 345 



Mouths of the Mississippi . . 352 



Drainage Basins of the United States ...... . 354 



Area Covered by the Ice of the Glacial Period . . . . . 383 



The Coast near Atlantic City . . . . . . . 394 



A Submerged Coastal Plain . . . . .... 399 



Appalachian Plateau .416 



xv 



