CALL #       QH26 .E77 1993.
AUTHOR       Evans, Howard Ensign.
TITLE        Pioneer naturalists : the discovery and naming of North American 
               plants and animals / Howard Ensign Evans ; drawings by Michael 
               G. Kippenhan.
IMPRINT      New York : Holt, 1993.

CALL #       QH26 .M27 1996.
AUTHOR       Maslow, Jonathan Evan.
TITLE        Footsteps in the jungle : adventures in the scientific 
               exploration of the American tropics / Jonathan Maslow.
IMPRINT      Chicago : Ivan R. Dee, 1996.

CALL #       QH26 .V53 1994.
AUTHOR       Vickery, Jim dale.
TITLE        Wilderness visionaries : Leopold, Thoreau, Muir, Olson, Murie, 
               Service, Marshall, Rutstrum / Jim dale Vickery.
IMPRINT      Minocqua, WI : NorthWord Press, c1994.