SWALLOW AND HAWN—THE ROCKS OF KANSAS. 178 
THE ROCKS OF KANSAS. 
BY @. C. SWALLOW AND F. HAWN. 
hse characters. Wher e have represented them as 
ntical with species akteofore ig, "the proofs s iden- 
tity are conclusive ; where there have been any slight differ- 
ever beans or advisable to form. new species on imper- 
mens. : 
er defects may pear in our descriptions of new 
wow ga oy can be relied upon as true to the 
ert inportance of these rocks to scientific and prac- = 
men* has as induced 1 ; to pre erway 
" Sgt eliogth sainat: kes we will, at an early 
