SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 85, NO. 3, PL. 16 



C Tv^'" ? 



Hnej»f» j!»iii»'.v6i-<^ " .» »j 



<■>,*- <t ',->*ai,_rA';^i'.^-.sA* i*? f". 



«i' , 









Burgess Shaue Fossils 



For explanation see page 42. 



