SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 52, PL. XI 



Fig. 3.— LOUISVILLE LIMESTONE ALONG BEAR GRASS CREEK, IN CHEROKEE PARK, JUST ABOVE BIG ROCK 

 Xiasfaraii crinoids are tnost abundant in the strata jn.st above the water level 



Flu. 4.— NIAGARAN STRATA ALONG BEAR GRASS CREEK, SHOWING BIG ROCK 



