142 



UNSTRATIFIEl) EOCK3. 



FIG. 66. 



He then applied pressure at the sides, 5 5, and found that, 

 while the superincumbent weight, a, was raised to a certain 

 extent, the cloths were folded and contorted, in a manner 

 perfectly analogous to the foldings and contortions of rocks 

 observed in nature, and portrayed in fig. 65. 



FIG. 67. 



UNSTEATIFIED BOCKS. The unstratified rock differs from 



FIG. 68. 



