Browse Items (12 total)

A Colorado sheep ranch

But the West has a future

Geographical survey in the Sierras

How it looked to the authors and illustrators of Harper�s

Oil cooking

Oil�A new industry

Plowing two-mile furrows

Railroads before hymns

SCIENCE IN REVIEW; 'Radiant Conditioning' Heats or Cools a House By Playing Off Heat-Reflecting Surfaces

'SCIENCE IN REVIEW; 'Radiant Conditioning' Heats or Cools a House By Playing Off Heat-Reflecting Surfaces', New York Times

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Steam balloons and bomb carriages

The big change

The U.S.A. from the air

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