Negative - man holding device

Man in Field

Negative - pig

Negative - weeds growing in jars

Negative - person drawing map

Negative - people working in laboratory

Negative - people working in laboratory

Negative - people working in laboratory

Negative - laboratory

Negative - stalk of grain

Negative - pig

Negative - pig

Negative - pig

Negative - pig

Negative - pig

Negative - pig

Negative - pig

Negative - pig

Negative - pig

Negative - pig

Negative - pig

Negative - tick

Negative - apiary

Negative - pig

Negative - pig

Negative - tick

Negative - beef judging demonstration

Negative - belt horsepower testing unit

Negative - boys' and girls' club leader visiting member's swine

Negative - pig

Negative - pig

Negative - pig

Negative - pig

Negative - apiary

Slide - cows in field

Negative - close-up of pig

Negative - close-up of pig

Negative - sheep in pen

Negative - man with lamb

Negative - first principal stallion

Negative - pig

Negative - close-up of wasp

Negative - pig

Negative - pig

Negative - pig

Negative - pig

Negative - pig

Negative - pig