U. S. NATIONAL MUSEUM 



BULLETIN 149. PLATE 23 



(UPPER). OLIVINE CHONDRULES IN BEAVER CREEK AND CULLISON STONES; 



(Lower Left), Enstatite Chondrule in Cullison: (Lower Right), 

 Twinned Enstatite Chondrules in parnallee Stone 



For EXPLANATiON OF PLATE SEE PAGES 10. 31, 32, 33. AND 42 



