's-Gravenhage: B. Liebers & Co., 1891. First Edition. Octavo (20cm.); publisher's green wrappers; 53pp. Ex-NYPL with their usual markings, wrappers and textblock exceedingly brittle and toned due to poor paper stock, lacking rear cover. Good only. The Dutch syndicalist author's study of Marx, published a year before his translation of The Communist Manifesto, the first to appear in Dutch. Though this title is not institutionally uncommon in Europe, OCLC locates no copies in North America as of January, 2019.