00798cam a22002411  4500001001300000003000400013005001700017008004100034010001700075035001900092040004200111042001200153050001500165100003700180245004800217250002000265260004200285300007300327500006200400500005800462650001900520999001700539gs 08000025 DLC20260227111307.0780209s1907    enkaf         000 0 eng c  ags 08000025   a(OCoLC)3621303  aU. S. Geol. survey. LibrarycCCCdDLC  apremarc00aTN422b.L71 aLongridge, Cecil Clement,d1852-00aGold dredging.cBy Captain C. C. Longridge.  a2d and rev. ed.  aLondon,b"The Mining Journal,"c1907.  axiii, 339, [1] p.billus., plates (part fold.) fold. tables.c25 cm.  aStamped below imprint: D. Van Nostrand company, New York.  aCover-title: Gold dredging and mechanical excavators. 0aGold dredging.  c24704d24704