Volume 82 



Silberling, N. J. (continued) 



1962 Stratigraphlc distribution of Middle Tri- 

 assic ammonites at Fossil Hill, Humboldt 

 Range, Nevada. 10 



1962 Stratigraphic distribution of Middle Tri- 

 assic ammonites at Fossil Hill, Humboldt 

 Range, Nevada i Addendum. 11 



