7 It is somewhat confusing that even Weismann in his most recent work professes to give “Lectures on the Theory of Descent,” and in reality only assumes it, concerning himself with the Darwinian theory in the strict sense. The English translation is more correctly entitled “The Evolution Theory.” _ 8 Cf._ Wagner, “Zur gegenwärtigen Lage des Darwinismus.” “Die Umschau,” January, 1900. 9 Eugen Dubois (Military Surgeon of the Dutch Army), “Pithecanthropus erectus, a man-like transition-form from Java.” Batavia. 1904. 10 H. Friedenthal. “Ueber einen experimentellen Nachweis von Blutsverwandtschaft.” Archiv. f. Anatomie und Physiologie, 1900, p. 404. 11 Jena, 1904. Trans. “The Evolution Theory,” Arnold. London 1904. 12 A defence of this very confident Darwinian point of view, for the benefit of non-scientific readers, will be found in the recent “Gemeinverständlichen darwinistischen Vorträgen und Abhandlungen,” by Plate, Simroth, Schmidt, and others. See also Ziegler’s “Ueber den derzcitigen Stand der Descendenzlehre in der Zoologie.” 13 “Rassenbildung und Erblichkeit,” Festschrift für Bastian, p. 9. 14 “Rassenbildung und Erblichkeit,” Festschrift für Bastian, p. 6. 15 “Sammlung gemeinverständl. Vorträge, hrsg. v. Virchow und Holtzendorf,” Heft 96. “Menschen und Affenschädel,” Berlin, 1870. 16 “Zeitschrift für Ethnologie,” 1882, p. 276. 17 “Verh. Berlin anthropolog. Gesellschaft iv.” (1872), p. 132. It does, however, appear strange to the lay mind that it should have been only the pathological subjects of prehistoric times that had their remains preserved for our modern study. _ 18 Cf._ “Zeitschrift für Ethnologie,” 1895, pp. 78, 735. _ 19 Cf._ “Rassenbildung und Erblichkeit.” Festschrift für Bastian, 1895. 20 See also “Descendenz und Pathologie.” Arch. f. path. Anat. a. Physiol., 1886; “Transformation und Abstammung.” Berliner Klin. Wochenschrift, 1893. 21 First edition, Leipzig, 1887. A second edition and an English translation have since been published. See especially the discussion of the origin and history of species in the second volume. 22 See English translation of Kerner’s Plant Life. _ 23 Cf._ a criticism of the book from the Darwinian point of view by Plate in Biologisches Centralblatt, 1901. 24 That this points only to the fact of evolution, and not necessarily to actual descent, will be seen later on. 25 First edition, 1899; now in a second edition. 26 “Genealogie der Urzellen als Lösung des Descendenzproblems” (1872), and “Der Darwinismus und die Naturforschung Newtons und Cuviers” (1874-1877). 27 “Eine kritische Darstellung der modernen Entwicklungslehre,” Jena, 1892. 28 Compare Darwin’s derivation of fishes from Tunicata because of the notochord which occurs in the tunicate larvæ.