6 (return) [ ‘L’Art de connaître les Hommes,’ &c., par G. Lavater. The earliest edition of this work, referred to in the preface to the edition of 1820 in ten volumes, as containing the observations of M. Moreau, is said to have been published in 1807; and I have no doubt that this is correct, because the ‘Notice sur Lavater’ at the commencement of volume i. is dated April 13, 1806. In some bibliographical works, however, the date of 1805—1809 is given, but it seems impossible that 1805 can be correct. Dr. Duchenne remarks (‘Mécanisme de la Physionomie Humaine,’-8vo edit. 1862, p. 5, and ‘Archives Générales de Médecine,’ Jan. et Fév. 1862) that M. Moreau “_a composé pour son ouvrage un article important_,” &c., in the year 1805; and I find in volume i. of the edition of 1820 passages bearing the dates of December 12, 1805, and another January 5, 1806, besides that of April 13, 1806, above referred to. In consequence of some of these passages having thus been _composed_ in 1805, Dr. Duchenne assigns to M. Moreau the priority over Sir C. Bell, whose work, as we have seen, was published in 1806. This is a very unusual manner of determining the priority of scientific works; but such questions are of extremely little importance in comparison with their relative merits. The passages above quoted from M. Moreau and from Le Brun are taken in this and all other cases from the edition of 1820 of Lavater, tom. iv. p. 228, and tom. ix. p. 279.] 7 (return) [ ‘Handbuch der Systematischen Anatomie des Menschen.’ Band I. Dritte Abtheilung, 1858.] 8 (return) [ ‘The Senses and the Intellect,’ 2nd edit. 1864, pp. 96 and 288. The preface to the first edition of this work is dated June, 1855. See also the 2nd edition of Mr. Bain’s work on the ‘Emotions and Will.’] 9 (return) [ ‘The Anatomy of Expression,’ 3rd edit. p. 121.] 10 (return) [ ‘Essays, Scientific, Political, and Speculative,’ Second Series, 1863, p. 111. There is a discussion on Laughter in the First Series of Essays, which discussion seems to me of very inferior value.] 11 (return) [ Since the publication of the essay just referred to, Mr. Spencer has written another, on “Morals and Moral Sentiments,” in the ‘Fortnightly Review,’ April 1, 1871, p. 426. He has, also, now published his final conclusions in vol. ii. of the second edit. of the ‘Principles of Psychology,’ 1872, p. 539. I may state, in order that I may not be accused of trespassing on Mr. Spencer’s domain, that I announced in my ‘Descent of Man,’ that I had then written a part of the present volume: my first MS. notes on the subject of expression bear the date of the year 1838.] 12 (return) [ ‘Anatomy of Expression,’ 3rd edit. pp. 98, 121, 131.]