XIII The Onyx Caves 162

XIV Crystal Cave 175

XV " " Concluded 183

XVI Conclusion 211




Cave Regions of

THE OZARKS AND BLACK HILLS.




CHAPTER I.

A GENERAL VIEW.

"O'er mountains bright with snow and light,
We crystal hunters speed along,
While grots, and caves, and icy waves,
Each instant echo to our song;
And when we meet with stores of gems
We grudge not kings their diadems."
--_Thomas Moore._