I was going through some of my piles of paperwork and finally found the magazine, INSIDE EARTH, No.2, which was put out by the Speleo Press many years ago. Its all in black and white, except for the cover. It gives a viewpoint by the staff of Jay Arnold, Frank Binney, Justin Cartrol and Ernest Garza. There's articles on technical, interview, short stories, longer stories--including Indiana, Grand Canyon, etc. Really a neat magazine and too bad they threw in the towel, but financially, I guess they couldn't keep it going. Believe they only put out four or five issues.
If you don't have this magazine in your library, you're missing something.
$3 plus shipping of $3 for a total cost of $6.This has been sold!