Evolution of sickle and flail, 33 horse team harvester, cutting, threshing and sacking wheat, Walla Walla, Washington.

Evolution of the sickle and flail, 33 horse team combined harvester, Walla Walla, Washington.

Evolution of the sickle and flail, 33 horse team combined harvester, Walla Walla, Washington.

Evolution of the sickle and flail, 33 horse team combined harvester, Walla Walla, Washington.

Evolution of the sickle and flail, 33-horse team combined harvester, Walla Walla, Washington.

Snoqualmie Falls, Columbia River, Oregon [sic], U.S.A.

Harvesting in the great West, combined reaper and thresher, Washington, U.S.A.

Harvesting in the great West, combined reaper and thresher, Washington, U.S.A.

Harvesting in the great West, combined reaper and thresher, Washington, U.S.A.

Harvesting in the great West, combined reaper and thresher, Washington, U.S.A.

Acres and acres of wheat, harvesting in the state of Washington, U.S.A.

Appledore, Natural Bridge.

Under the arch.

Natural Bridge, down stream.

Natural Bridge, looking east.

Natural Bridge, looking west.

Natural Bridge, looking west.

Forrest Inn, Natural Bridge.

Natural Bridge, up stream.

Natural Bridge, Virginia.

Natural Bridge, Virginia.

One of nature's curious structures - the famous Natural Bridge, Rockbridge County, Virginia.

Natural Bridge, Virginia.

One of nature's curious structures - the famous Natural Bridge, Rockbridge County, Virginia.

Natural Bridge, Virginia.

Natural Bridge, Virginia.

Natural Bridge, Virginia, U.S.

Natural Bridge, Virginia, U.S.

Natural Bridge, Virginia.

Natural Bridge in Virginia.