00993cam a22002411  4500001001300000003000400013005001700017008004100034010001700075035001900092040004500111042001200156050002300168110003400191245014800225260007900373300004000452490003900492500006500531500010200596650001600698700003700714gs 12000088 DLC20260227111312.0780306s1911    xx            000 0 eng c  ags 12000088   a(OCoLC)3690831  aLibrary, U.S. Geological SurveycOTdDLC  apremarc00aQH105.M5bA3 no. 21 aMichigan.bGeological Survey.12aA biological survey of the sand dune region on the south shore of Saginaw Bay, Michigan.cPrepared under the direction of Alexander G. Ruthven.  aLansing, Mich.,bWynkoop, Hallenbeck, Crawford co., state printers,c1911.  a347 p.bXIX pl., fold. map.c24 cm.0 aPublication 4, Biological series 2  aAt head of title: Michigan Geological and biological survey.  aPublished as part of the Annual report of the Board of geological and biological survey for 1910. 0aSand dunes.1 aRuthven, Alexander Grant,d1882-