294 CHANNEL ISLANDS OF CALIFORNIA 



one has been found {Pecten estrellamus), which was 

 uncovered when the stage road was cut through the 

 mountain just before it tips down into the Isthmus. 

 There is a large deposit of infusorial earth or chalk at 

 the Isthmus on the south side, perforated by caves; 

 where the earth is cut away it comes out clear and 

 white. One very large cave occurs here; to the right, 

 not far away, is an outcropping of "red paint," from 

 which the Indians made their color, which Mexican 

 Joe pointed out to me years ago. 



