00831cam a22002171  4500001001300000003000400013005001700017008004100034010001700075040004700092050001900139100005800158245009200216260005400308300005200362490007500414500001700489650001100506830007900517999001700596gs 30000285 DLC20260227111335.0871002s1923    iluaf         000 0 eng c  ags 30000285   aU.S. Geological Survey Libr./ICUcICUdDLC10aQE1b.F5 no. 31 aFarrington, Oliver C.q(Oliver Cummings),d1864-1933.10aAmber;bits physical properties and geological occurrence,cby Oliver C. Farrington ...  aChicago,bField museum of natural history,c1923.  a7 p. incl. illus.b3 pl. (incl. front.)c23 cm.1 aField museum of natural history. Department of geology. Leafletvno. 3  aCover-title. 0aAmber. 0aLeaflet (Field Museum of Natural History. Department of Geology) ;vno. 3.  c26826d26826