group," or, as stated by Darwin, that "in two or more groups of animals, however much they may at first differ from each other in structure and habits, if they pass through closely similar embryonic stages, we may feel almost assured that they have descended from the same parent form, and are therefore closely related."(194) (194) For the stone forms given to early bronze axes, etc., see Nilsson, Primitive Inhabitants of Scandanavia, London, 1868, Lubbock's Introduction, p. 31; and for plates, see Lubbock's Prehistoric Man, chap. ii; also Cartailhac, Les Ages Prehistoriques de l'Espagne et du Portugal, p. 227. Also Keller, Lake Dwellings; also Troyon, Habitations Lacustres; also Boyd Dawkins, Early Man in Great Britain, p. 191; also Lubbock, p. 6; also Lyell, Antiquity of Man,chap. ii. For the cranogs, etc., in the north of Europe, see Munro, Ancient Scottish Lake Dwellings, Edinburgh, 1882. For mounds and greater stone constructions in the extreme south of Europe, see Cartailhac's work on Spain and Portugal above cited, part iii, chap. iii. For the source of Mr. Southall's contention, see Brugsch, Egypt of the Pharoahs. For the two sides of the question whether in the lower grades of savagery there is really any recognition of a superior power, or anything which can be called, in any accepted sense, religion, compare Quatrefages with Lubbock, in works already cited. For a striking but rather ad captandum effort to show that there is a moral and religious sense in the very lowest of Australian tribes, see one of the discourses of Archbishop Vaughn on Science and Religion, Baltimore, 1879. For one out of multitiudes of striking and instructive resemblances in ancient stone implements and those now in use among sundry savage tribes, see comparison between old Scandanavian arrowheads and those recently