1. The authors of the communication are Godfried Pohl (first author), his wife, Ingrid Pohl (second author), Wolfgang Mayer (third author) and Franz Wallmann (fourth author), all Austrian citizens.

The great quantity of British goods exported during the course of the late war, without bringing back any returns, is accordingly remarked by the author of The Present State of the Nation.

Oskar Ewald, the author of the book Avenarius as the Founder of Empirio-Criticism, says that this philosophy combines contradictory idealist and “realist” (he should have said materialist) elements (not in Mach’s sense, but in the human sense of the term element).

For this reason, in addition to presenting the general principles of Marxism, they reflect to a certain degree the concrete revolutionary situation of the time. It will, therefore, be more expedient, perhaps, to examine what the authors of these works said about the state immediately before they drew conclusions from the experience of the years 1848-51.