110 - AMERICAN FERN JOURNAL 
found as Fremont described, in a conspicuous bed of 
hard white clay which runs for miles along a steep hill-_ 
side. The first blow of the hammer proved that it was 
really the fern horizon and in feverish haste we dug out 
and split open the layers of clay. There were beautifully 
preserved and delicate little fronds of Gleichenia of several 
species, some so perfect that the characteristic forking of — 
the fronds and the apical bud were well displayed. There _ 
_ Was a fine large fruiting species of Anemia, a peculiar 
_Dennstaedtia with the fruit borne on reduced a 
as well asa number of types without fruit. It was 
- array that we packed and shipped to Washington, whe 
‘it still awaits: opportunity for final study. The same 
__ association has since been found in other parts of Wy 
3 ae but: none of it has been eritically examined. 
