Michigan (Jeolojiical antl 

 Biological Survey. 



rul)li(;it 1(111 4 : r.iniojry 

 riatc I. 



(A) UKACII ON THE NORTH SIDK OF SAND I'olNT. 



^: 





m 









-^ ^ 



(B) FACE OF OITKU DINK AT <!AK IMIXT. NOTE SAND-BINDING GRASSES. 



