"beak"

Mark with Little Brown Bat and its baby - Black Hills 1991

"oooo pizza" - Mark with little brown bat in the Black Hills 1991

Flannel

Flannel

Flannel

Lake District England, 1991

Botany in the Black Hills 1991

Science Station Ecology Class Yellowstone Trip 1991

Mark studying zoology- Wheaton College Science Station 1991

Mark washing dishes- Wheaton College Science Station 1991

Mark in England