EN
Results of investigations on wood material in 80 sculptures and 14 paintings coming from nine Polish museums have been reported. The investigations in question were carried out for th e sake of the ICOM Laboratory Section and aimed at defining the species from which was coming the wood material used in Polish paintings and sculptures dating from the 13th to 16th century. The microscopic method was applied in investigations taking into account the structural pattern and size of heart-wood v essels and medullary rays. It is w e llknown fact that the above features may be subject to alterations with the wood material ageing and depend much on preservating processes that might have been applied in the past. It has been found that from among wood materials available the most broadly used was the species lime (Til'ia sp.). In addition to lime in the northern territories of Poland frequently enough the oak wood (Quercus robur) was used (1:5 oak wood to 25 lime wood objects) whereas the latter was rarely in use in central and southern regions of the country (3 oak wood to 50 lime wood objects). Quite exceptionally were used other kinds of wood (from among a total number of 94 pieces investigated only one has been found made of adlèr wood — Ainus op.).