MICHIGAN GEOLOGICAL AND BIOLOGICAL SURVEY 



Publication 4 

 Biological Series 2 



A BIQLOGICAL SURVEY OF THE SAND 



DUNE REGION ON THE SOUTH SHORE 



OF SAGINAW BAY, MICHIGAN 



PREPARED UNDER THE DIRECTION OF 



ALEXANDER G.[RUTHVEN 



Chief Field Naturalist, Michigan Geological and Biological »Survey 



PUBLISHED AS A PART OF THE ANNUAL REPORT OF THE BOARD OF 

 GEOLOGICAL AND BIOLOGICAL SURVEY FOR 1910 



LANSING, MICHIGAN 

 WYNKOOP HALLENBECK CRAWFORD. CO., STATE PRINTERS 



1911 



