The positive outcome of philosophy. The nature of human brain work. Letters on logic. The positive outcome of philosophy. Translated by Ernest Untermann. With an introd. By Anton Pannekoek. Edited by Eugene Dietzgen and Joseph Dietzgen, jr. Воспроизведено в оригинальной авторской орфографии издания 1906 года (издательство "Chicago C.H. Kerr"). Это и многое другое вы найдете в книге The positive outcome of philosophy. The nature of human brain work. Letters on logic. The positive outcome of philosophy. Translated by Ernest Untermann (Joseph Dietzgen)