[Species identification of the fragment of wood found in the left eye socket bone during exhumation of general Wladyslaw Sikorski's corpse]. / Identyfikacja gatunkowa fragmentu drewna znalezionego w trakcie ekshumacji zwlok generala Wladyslawa Sikorskiego w kosci lewego oczodolu.

During the exhumation of general Wladyslaw Sikorski's corpse, a fragment of wood was found embedded in the left eye socket bone. The wood fragment was referred by the Institute of Forensic Research to the laboratory of Department of Forest and Wood Utilization, University of Agriculture in Krakow, where investigations were performed, aiming at determining the species of the wood. The fragment was cut into 20 microm thick microtome scraps of three anatomy sections: transverse, tangential and radial. The scraps were immersed in 99.8% ethyl alcohol for 24 hours and then for about 1 hour in xylene. Subsequently, they were placed between a microscope slide and a cover-glass in Canada balsam. The thus prepared scraps were then analyzed with the use of a Jenaval Carl Zeiss microscope. On the basis of microscope observations it was determined that the investigated fragment of wood belonged to Douglas-fir species (Pseudotsuga menziesii (Mirb.) Franco).