486 NOTES. 



160 (ii. 168). On the structure of the Decidua very various 

 theories have been given. Cf . Kolliker, " History of the EvolutioD 

 of Man " (" Entwickelungsgeschichte des Menschen." 2nd 

 edition, 187] , pp. 319-376). Ercolani (Giambattista), " Sul pro- 

 cesso formativo della placenta." Bologna, 1870. "Le glandole 

 otricolari dePutero." Bologna, 1868, 1873. Huxley, "Lectures 

 on the Elements of Comparative Anatomy," 1864, pp. 101-112. 



161 (ii. 172). Huxley, "Anatomy of Vertebrates," 1873, 

 p. 382. Previously Huxley had separated the " Primates " into 

 seven families of nearly equal systematic value. (See "Man's 

 Place," etc., p. 119.) 



162 (ii. 179). Darwin. Sexual selection in Apes and Man. — 

 " Descent of Man," vol. ii. pp. 210-355. 



163 (ii. 180). Man-like Holy Apes. Of all Apes, some Holy 

 Apes (Semnopitliecus) most resemble Man, in the form of their 

 nose and the character of their hair (both that on the head and 

 that on the beard). — Darwin, " Descent of Man," vol. i. p. 335 ; 

 vol. ii. p. 172. 



164 (ii. 182). Friedrich Muller (" Allgemeine Ethnographic" 

 Vienna, 1873, p. 29), on the supposed age of man. Families of 

 languages (pp. 5, 15, etc.). 



165 (ii. 183). The plate (XV.) representing the migrations, 

 given in the "History of Creation," merely claims the value of 

 a first attempt, is an hypothetic sketch, as I there expressly said, 

 and as, in consequence of repeated attacks, I must here insist. 



166 (ii. 201). The Leather-plate. The phylogenetic distinction 

 of a special leather-plate, the outermost lamella separating from 

 the skin-fibrous layer, is justified by Comparative Anatomy. 



167 (ii. 204).. Milk-glands. Huss, "Contributions to the 

 History of the Evolution of the Milk-glands" ("Beitrage zur 

 Entwickelungsgeschichte der Milchdriisen ") ; and Gegenbaur, 

 "On the Milk-gland Papilla? " (" Jenaischc Zeitschrift fur 

 Naturwissenschaft," 1873, vol. vii. pp. 176, 204). 



168 (ii. 208). On the hairy covering of Man and Apes, see 

 Darwin, "Descent of Man," vol. i. pp. 20, 167, 180; voL ii 

 pp. 280, 298, 335, etc. 



