This callectian 'Of essays is, generally speaking, a cantinuatian of the themes that I have discussed in my baak Z metodologicz­ nych problemow interpretacji humanistycznej.l Naturally, by continuatian I mean a resumptian 'Of certain questions that were already dealt with in the previous baok. But I treated them rather summarily there, and naw I will present them in greater detail. While daing so, I will have to face new issues, which were ignared previously, but which have ta be salved, at least tentatively, in 'Order ta make it passible for me ta elabarate more fully the suggestions made a few years aga. Along with this reason, a sec and 'One can be added ta explain why in these Essays an the Theary 'Of Scientific Cognitian I tackle new problems, treated na mare than marginally in Z metodologicznych problemow interpretacji humanistycznej. The current elaboration of my earlier, incipient suggestians is based an the assumptions which may well serve as a starting paint for an investigation 'Of mare general questions funda­ mental far epistemalogy and frequently far mula ted within its scope. Ta make at least a partial use of the oppartunity, I cancentrated an some of these questians, especially in the later chapters 'Of this baok.