Part 3 — BIBLIOGRAPHY

National Parks Folder on Carlsbad Caverns New Mexico, The American Guide Series Animal Life of the Carlsbad Cavern, by Vernon Bailey National Geographic Magazine, January, 1924; September, 1925; October, 1953 Science American, October, 1900; December, 1923 Science, December, 1923; November, 1924 Sunset, May, 1924 Mentor, August, 1925 Literary Digest, November, 1924 The New York Times, October, 1923 Natural History Magazine, December, 1947 Bulletins of the U. S. Geological Survey

The famous bat flight—a nightly occurrence at the Caverns.