lxxxix 
CORRELATION OF STRATA. 
New Vork &@ Canada. 
Oswepo 
Sandsfoxe. 
-_— —- 
—S5 = 
os - 
—— - 
— S a S 
ae oy SS Tse Cy ° Z « 
q} 3 ~S Sane eee wmcinnale Tegeor, 
= x S SSS : Cumberland 
= q . en 6.5. 
a Sr) Se ® 
Q % SS 
% S : 
S 20° 
K] 8 SS 
Ne ae) Ss. ss 
3 < 2 
< ° xe im 
Ni = 5 ° 
= a : Loraine Lreup. | : cm, 
S : a 200 
ea uo, 
S me 
® eps i mie oe ey ee <6 
& Criral Tennessee 
S| 250' 
= Upper 
E: Nashville Op 
e 
= 
e EIS? 
q -— | Middle 
= Nashucle 
= 
Orthis 
bed 
Northwestern 
slales, 
60) Trenton 
shales. 
Trenton 
dimes7one 
TRENTON PER/OD. 
SECTION 9. Comparative stratigraphy of the Lower Silurian, New York, to Minnesota. 
