Volume 23 ( Part 1) - January 1961

Cover

Barton Hill Project

Article
Introduction
Russell Gurnee

Article
Physical Features of Barton Hill
Russell Gurnee

Article
Geology
Richard Anderson

Article
Hydrology and Water Supply
Albert C. Mueller

Article
Exploration of Gage Caverns and Youngs Spring
Russell Gurnee

Article
Health and Sanitation
José Limeres

Article
Conclusions and Recommendations

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Volume 23 (Part 2) - July 1961

Cover

Article
Speleology in New Zealand
David V. May

Article
A Stream Piracy Theory of Cave Formation
Herbert P. Woodward

Article
The Collembola of Hunters Cave
Kenneth A. Christiansen

Article
With a Preliminary Study of the Microarthropod Ecology of Hunters Cave
K. Christiansen, Mary Wilson and Jerry Tecklin

Article
Eye and Pigment Regression of Cave Salamanders
A. Vandel

Article
Glacier Caves of Svartisen, Norway
William E. Davies

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