The follow original National Geographc magazines with cave or bat related articles are all available only in limited quantities, subject to prior sale! Order by date and title.

April 1996, Pilgrimage to Buddhist Caves $1.00
Feb 1996, Into the Heart of Glaciers $1.00
Sept 1995, Huautla Cave Quest $3.00
March 1991, Splendors of Lechuguilla $3.00
Jan 1990, Nest Gatherers of Tiger Cave $1.00
Nov 1988, Honey Hunter in Nepal $1.00
Oct 1988, Treasures of Lascaux Cave $1.00
April 1986, Africas Flying Foxes $2.00
Jan 1984, Exploring a Sunken Realm in Australia $1.00
Jan 1982, The Amazing Frog-eating Bat $2.00
Aug 1981, Maya Art Discovered in a Cave $1.00
March 1975, Six Months Alone in a Cave $1.00
Jan 1975, Exploring the Mind of Ice Age Man $1.00
May 1973, Bats aren't all Bad $2.00
Feb 1973, Art of the Aborigines $1.00
Sept 1970, Diving into the Blue Holes of the Bahamas $1.00
July 1970, Keeping House in a Cappadocian Cave $1.00
Sept 1967 Russell Cave Dedicated $1.00
Feb 1965, Birds that "see" in the dark with their ears $1.00
June 1964, Exploring Americas Underground ` $1.00
Feb 1964, Wetherill Mesa Yields Secrets of Cliff Dwellers $1.00
May 1962, Cites of Stone in Utah's Canyon Land $1.00
April 1961, Bats Hunt with Sound $1.00
Oct 1960, Man on the Moon in Idaho $1.00
Nov 1959, Searching for Cliff Dwellers Secrets $1.00
March 1958, Russel Cave $1.00
Oct 1957, Gypsy Cave Dwellers of Andalusia $1.00
Oct 1956, Life 8000 years ago in an Alabama Cave $1.00
Oct 1953, Carlsbad Caverns in Color $1.00
May 1953, Indias Sculptured Temple Caves $1.00
March 1953, Probing Ice Caves of the Pyrenees (Casteret) $1.00
March 1951, The Caves of the Thousand Buddhas $1.00
Dec 1948, Lascaux Cave Cradle of World Art (Casteret) $2.00
July 1946, Mystery Mammals of the Twilight $2.00
Sept 1925, New discoveries in Carlsbad Caverns $8.00