In the paper I address the problem of consolidation of the borders of the world of science by scientific institutions—in this case, Polish scientific societies of various fields. Basing on the analysis of the statutes of selected societies, I formulate a list of research questions that concern the role of scientific societies in distinguishing between what is considered scientific and what is not. These questions can be used in a more in-depth research. I adopt a constructivist perspective, focus on the ways in which science is produced and separated from pseudoscience, and do not address the (in)accuracy of claims rejected by the scientific world.