Smithsonian Report. 1936. — Conger 



PLATE 7 



.\l:issi\,. (H (urifiirf of (li;ii..iii:i(C(.us iMitli, or (liutomlte, deposits. 

 Upper Distant view of a mountain of diatomaceous earth at Lompoc, Calif. Though this ijicture giv'es 



every appearance of a landscape covered with snow, the picture was taken in the heat of summer, and the 



whiteness is due to the pure white nature of the earth. 

 Lower, Closeup view of an open cut in the above deposit. 



