00979nam a22002651  4500001001300000003000400013005001700017008004100034010001700075040005100092043001200143050002300155051002500178100004100203245007700244260004300321300008000364490006100444500005000505500004700555504004300602504003000645650002100675999001700696gs 19000069 DLC20260227111323.0770317s1919    dcuab    b   f00010 eng c  ags 19000069   aU.S. Geol. survey. Library  (200)B no. 109cak  an-us-ak0 aQE75b.P9 no. 109.  aQE84.C3bL4cCopy 2.10aLeffingwell, Ernest de Koven,d1876-14aThe Canning River region, northern Alaska,cby Ernest de K. Leffingwell.0 aWashington,bGovt. print. off.,c1919.  a251 p.billus., XXXV pl. (part fold.; incl. maps in pocket) diagrs.c29 cm.0 aUnited States. Geological survey. Professional paper 109  aAt head of title: Department of the interior.  aMany plates printed on both sides of leaf.  a"List of geographic names": p. 93-100.  aBibliography: p. 242-243. 0aGeologyzAlaska.  c25906d25906