518 (return) [ Prof. Owen on the Orang, Proc. Zool. Soc. 1830, p. 28. On the Chimpanzee, see Prof. Macalister, in Annals and Mag. of Nat. Hist. vol. vii. 1871, p. 342, who states that the _corrugator supercilii_ is inseparable from the _orbicularis palpebrarum_.] 519 (return) [ Boston Journal of Nat. Hist. 1845—-47, vol. v. p. 423. On the Chimpanzee, ibid. 1843-44, vol. iv. p. 365.] 520 (return) [ See on this subject, ‘Descent of Man,’ vol. i. p. 20.] 521 (return) [ ‘Descent of Man,’ vol, i. p, 43.] 522 (return) [ ‘Anatomy of Expression,’ 3rd edit. 1844, pp. 138, 121.] 601 (return) [ The best photographs in my collection are by Mr. Rejlander, of Victoria Street, London, and by Herr Kindermann, of Hamburg. Figs. 1, 3, 4, and 6 are by the former; and figs. 2 and 5, by the latter gentleman. Fig. 6 is given to show moderate crying in an older child.] 602 (return) [ Henle (‘Handbuch d. Syst. Anat. 1858, B. i. s. 139) agrees with Duchenne that this is the effect of the contraction of the _pyramidalis nasi_.] 603 (return) [ These consist of the _levator labii superioris alaeque nasi_, the _levator labii proprius_, the _malaris_, and the _zygomaticus minor_, or little zygomatic. This latter muscle runs parallel to and above the great zygomatic, and is attached to the outer part of the upper lip. It is represented in fig. 2 (I. p. 24), but not in figs. 1 and 3. Dr. Duchenne first showed (‘Mécanisme de la Physionomie Humaine,’ Album, 1862, p. 39) the importance of the contraction of this muscle in the shape assumed by the features in crying. Henle considers the above-named muscles (excepting the _malaris_) as subdivisions of the _quadratus labii superioris_.]