Stanislaw Staszic (1755-1826) was a follower of the French geological school of the second half of the 18th century. The main inspiration for his studies was Buffon's book entitled 'Les époques de la nature' (1778). He translated this book into Polish and published thrice (in 1786, 1803 and 1816), always including his own foot notes that concerned the Polish territories' geology.Since 1781 he was engaged in reconnaissance of Alpine, Apenine and Carpathian area, and European Lowland. His main work was a book of 1815 entitled 'O ziemiorodztwie Karpatów i innych gór i równin Polski' (Carpathian and Other Polish Mountains' and Plains' Geology). The composition included a geological map of Central Europe and presented a geological profile of the territories spreading over the distance from Carpathian to Baltic area. On the area he distinguished 6 stratigraphic points that partly converged A. G. Werner's assignations. In his earliest writings (since 1803) Staszic declared for fossil volcanicity on Polish territories. Later, he declared for its existence in South - Eastern Carpathian area only. His stratigraphy based on lithological assumptions mainly, though he appreciated of fossils' importance. Moreover, Staszic was passionately fond of the big mammals that, in his opinion, descended from the earliest geological age.