Now it is said in general that Anarchism rejects property,[15] or at least private property;[16] now a distinction is made between Communistic and Individualistic,[17] or even between Communistic, Collectivistic, and Individualistic Anarchism.[18] Now it is asserted that Anarchism conceives of its realization as taking place through crime,[19] especially through a violent revolution[20] and by the help of the propaganda of deed;[21] now, again, that Anarchism rejects violent tactics and the propaganda of deed,[22] or that these are at least not necessary constituents of Anarchism.[23] 3. Two demands must be made of everybody who undertakes to produce a scientific work on Anarchism. First, he must be acquainted with the most important Anarchistic writings. Here, to be sure, one meets great difficulties. Anarchistic writings are very scantily represented in our public libraries. They are in part so rare that it is extremely difficult for an individual to acquire even the most prominent of them. So it is not strange that of all works on Anarchism only one is based on a comprehensive knowledge of the sources. This is a pamphlet which appeared anonymously in New York in 1894, "_Die historische Entwickelung des Anarchismus_" which in sixteen pages gives a concise presentation that attests an astonishing acquaintance with the most various Anarchistic writings. The two large works, _"L'anarchia e gli anarchici, studio storico e politico di E. Sernicoli_" 2 vol., Milano, 1894, and "_Der Anarchismus, kritische Geschichte der anarchistischen Theorie von E. V. Zenker_," Jena, 1895, are at least in part founded on a knowledge of Anarchistic writings. Second, he who would produce a scientific work on Anarchism must be equally at home in jurisprudence, in economics, and in philosophy. Anarchism judges juridical institutions with reference to their economic effects, and from the standpoint of some philosophy or other. Therefore, to penetrate its essence and not fall a victim to all possible misunderstandings, one must be familiar with those concepts of philosophy, jurisprudence, and economics which it applies or has a relation to. This demand is best met, among all works on Anarchism, by Rudolf Stammler's pamphlet, "_Die Theorie des Anarchismus_," Berlin, 1894. FOOTNOTES: [2] "_Der Anarchismus und seine Traeger_" pp. 124, 125, 127; Reichesberg p. 27. [3] Lenz p. 3. [4] Bernatzik pp. 2, 3. [5] Lenz p. 5. [6] Crispi. [7] Van Hamel p. 112. [8] Adler p. 321. [9] Reichesberg p. 13. [10] Stammler pp. 2, 4, 34, 36; Lenz pp. 1, 4. [11] Silio p. 145; Garraud p. 12; Reichesberg p. 16; Tripels p. 253. [12] Bernstein p. 359; Bernatzik p. 3. [13] Reichesberg p. 30. [14] Lombroso p. 31. [15] Silio p. 145; Dubois p. 213. [16] Lombroso p. 31; Proal p. 50. [17] Rienzi p. 9; Stammler pp. 28-31; Merlino pp. 18, 27; Shaw p. 23. [18] "_Die historische Entwickelung des Anarchismus_" p. 16; Zenker p. 161. [19] Garraud p. 6; Lenz p. 5.