Michigan GeoloKical ami 

 Biological Survey. 



Piihlical ion 2t); Miology 4. 

 Platii XIV. 



A. LAKE SUPKKIOU BIlACll Willi IMXKS OF TUl'; IIHST SAND RIDGE. 



1?. C:R.\N'HKUUV CKKKK (SI \II(»\ :ilh. l.MOK'.NC \i)l;rn A.\l) DllWN sihi:a.\i. 

 SHOW INC A PAUr ol" 1111. iU;.\(ll I'm .1. rni;Mi;i) U\ ir (STATION :i 1 ■ 



