Perec ety ene gee 
puppets,” ends the deposits clearly referable to the epoch of 
depression. ; 
he Loess differs little from its equivalents farther north, 
save in being, utterly devoid of stratification as well as of any 
fluviatile organisms. It is not easy to imagine the modus 
operandi by which a deposit of this kind, sometimes 70 feet 
thick, and of dead uniformity from top to bottom, could be 
produced. Its equivalents farther north exhibit very distinctly 
the structure resulting when deposition takes place in (gently) 
| flowing water; at the south it was agg substantially stag- 
It is altogether devoid of stratified structure, as well as of fossils, 
and forms the surface layer, and in most cases the subsoil of 
£ 
tion of submergence, however brief, to the highest level at - 
vhich ; changes of level heretofore alluded to 
Would be shown to have exceeded by 600 to 700 feet the esti- 
_ Inate given above. 
_ The succeeding (Terrace) epoch of elevation has not, so far 
as I am aware, left any marks in the way of beach-lines or 
terraces, unless the second bottoms or “ hommocks” be ac- 
counted such. They, however, belong to a very modern epoch, 
s no 
