Man's interest in caves dates back perhaps to prehistoric times. He probably used them as homes in his very earliest history. It is in caves that we find bones believed to be of primitive man. As he became civilized he developed and prepared for himself houses to live in and his interest in caves has taken on an entirely different aspect. They have become a source of curiosity or a field for scientific study.
©1932 by Iowa State Teachers College
Read, O. B.
Science Bulletin: Vol. 4:
6, Article 3.
Available at: https://scholarworks.uni.edu/science_bulletin/vol4/iss6/3