Number 17 - December 1955

Cover

Foreword

Article
Caverns of St. Tomas
Antonio Nunez Jimenez and Kenneth A Symington

Article
Saltpetre Mining Tools Used in Caves
Burton Faust

Article
Magnetic Cave - The Wonderful Hoax
William R. Halliday

Article
Caves and Related Features of Michigan
William E. Davies

Article
A Proposed Classification of Physical Features Found in Caves
William R. Halliday

Article
Radio Transmission in Caves
Fielding McGehee

Article
Recent Explorations in Floyd Collins Crystal Cave
Roger W. Brucker

Regional Organizations and Chapters of the National Speleological Society

Authors

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