Iowa Heritage Digital Collections
State Library of Iowa

Browse Items (150 total)

Plained furrows, 1942

Plained furrows, 1942

A group of three men are standing in a plowed field. The furrow in the middle is considerably lower than those on either side.
Plained furrows, 1942

Plained furrows, 1942

A group of three men are standing in a plowed field. The furrow in the middle is considerably lower than those on either side.
Professor Ernest Muchmore Mervine and Agricultural Engineering Class, 1919.

Professor Ernest Muchmore Mervine and Agricultural Engineering Class, 1919.

Professor Mervine and several other individuals work on different types of tractors including; a New Hart Parr tractor, a Rock Island Plow Heider tractor and an Avery Company tractor.
Professor Ernest Muchmore Mervine and Agricultural Engineering Class, 1919.

Professor Ernest Muchmore Mervine and Agricultural Engineering Class, 1919.

Professor Mervine and several other individuals work on different types of tractors including; a New Hart Parr tractor, a Rock Island Plow Heider tractor and an Avery Company tractor.
Professor Johnson and three students investigating water hydrant fixtures, 1957

Professor Johnson and three students investigating water hydrant fixtures, 1957

Professor Howard Johnson helps one student adjust a water hydrant fixture, while two others observe in a lab class about sprinkler irrigation equipment.
Professor Johnson and three students investigating water hydrant fixtures, 1957

Professor Johnson and three students investigating water hydrant fixtures, 1957

Professor Howard Johnson helps one student adjust a water hydrant fixture, while two others observe in a lab class about sprinkler irrigation equipment.
Professor Johnson discussing sprinkler irrigation equipment with students, 1957

Professor Johnson discussing sprinkler irrigation equipment with students, 1957

Professor Howard Johnson (in tie) discusses the design and operations of sprinkler irrigation equipment with agricultural engineering students in lab class.
Professor Johnson discussing sprinkler irrigation equipment with students, 1957

Professor Johnson discussing sprinkler irrigation equipment with students, 1957

Professor Howard Johnson (in tie) discusses the design and operations of sprinkler irrigation equipment with agricultural engineering students in lab class.
Professor showing three students the inner mechanics of a John Deere tractor, 1957

Professor showing three students the inner mechanics of a John Deere tractor, 1957

A professor shows three students the mechanics of a John Deere tractor that has been flipped open to show the inside.
Professor showing three students the inner mechanics of a John Deere tractor, 1957

Professor showing three students the inner mechanics of a John Deere tractor, 1957

A professor shows three students the mechanics of a John Deere tractor that has been flipped open to show the inside.
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