摘要:The preparation is presented of underwater wood, wood identification, wood properties and FT-IR analysis. Two samples of Oak (Quercus petraea Liebl.; Quercus robur L.) were analyzed from two sites in Dubrovnik area, island Koločep and Molunat. This paper presents the preparation of underwater wood, wood identification, wood roperties and FT-IR analysis. Three section of wood, cross section, radial section and tangential section made for microscopis hardwood and softwood identification. The best two samples are assumed to be Sessil oak (Quercus petraea Liebl.) and Pedunculate oak (Quercus robur L.).