00423nam a22001577a 450000500170000000800410001704000090005804100080006708200130007510000200008824500370010825000120014526000670015730000190022465000220024320190207115737.0190207b        xxu||||| |||| 00| 0 eng d  aMAIN  aeng  a550bHOL1 aHolmes, Arthur.00aPrinciples of physical geology /  a1st ed.  a385 Medison Avenue:bThomas Nelsons and Sons Ltd.,cc1949 Rep.  a531 p;c22 cm.  aPhysical geology