U. S. NATIONAL MUSEUM 



BULLETIN 149, PLATE 27 



(1). CHONDRULE in PARNALLEE STONE WITH SECONDARY GLASS BORDER; 



(2). SAME Showing Effects of Crushing: (3, 4. and 5). Chondrules From 

 Hendersonville, Troup, and Ensisheim Stones Showing Effects of 

 Crushing 



For explanation of plate see pages 40 and 42 



