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GRAPHIC PRESENTATION

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Nnlional Rt-sourcc» Board. "Statf PlanninR." 1035. SCALE .5

A. Existing Routes of Midwestern Airways and Routes Suggested by the Iowa State Planning Board.

1. Because its state planning board prepared this map, Iowa is emphasized.

2. The inclusion of states other than Iowa makes it clear why the new air routes are

suggested.

EnginrrririK Nrw« Record. October 1Q38. Part of an Editorial on Public Relations for Industry. SCALE .6

B. States from Which Materials and Equipnrient for the Construction of Boulder Dam Were Secured.

This type of map, whether it includes one continent or the whole world, is effective in explaining the interdependence of peoples. For the construction of Boulder Dam, materials had to be secured from forty-six states.

GUIDE AND ROUTE MAPS

American Aviation. May 1. 1Q38.

Pictorial Map of the Route of Eastern Air Lines In 1938.

1. A pictorial map attracts and teaches.

2. Compare this with 163A. GRAPHIC PRESENTATION

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National Rrsourcrs Board, "State Planning," 1935.

Recreation Facilities of the State of Rhode Island In 1935.

SCALE .7

By means of numerous line drawings, a base map could easily be converted into a pictorial map similar to the one shown above.

GUIDE AND ROUTE MAPS

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