The Ajierican Geologist, Vol. XX 
Section I. 
Sections across tkt Cztyct^oi^a Taitey . onhm AB 
Section II. 
f^ VuIUt/ of the 
present Cui/a.7io^cx- ^ 
i>i T'lood plat'n 
^ Chunnei cf pfcscnU- .TPz'i^cr. 
