P. [309]. Ear-lobes. The remark is due to Blumenbach: cf. Hegel's Werke, v. 285.
P. [312]. Colours, i.e. painters' colours; cf. Werke, vii. 1. 314 (lecture-note). 'Painters are not such fools as to be Newtonians: they have red, yellow, and blue, and out of these they make their other colours.'
P. [315], § 181. For the genetic classification of judgments and syllogisms and the passage from the former to the latter compare especially Lotze's Logic, Book i. And for the comprehensive exhibition of the systematic process of judgment and inference see B. Bosanquet's Logic, or the Morphology of Knowledge. The passage from Hegel's Werke, v. 139, quoted at the head of that work is parallel to the sentence in p. 318, 'The interest, therefore,' &c.
P. [320], § 186. The letters I-P-U, of course, stand for Individual, Particular, and Universal.
P. [321], § 187. Fourth figure. This so-called Galenian figure was differentiated from the first figure by the separation of the five moods, which (after Arist. An. pr. i. 7 and ii. I) Theophrastus and the later pupils, down at least to Boëthius, had subjoined to the four recognised types of perfect syllogism. But its Galenian origin is more than doubtful.
P. [325], § 190. Cf. Mill's Logic, Bk. ii. ch. 3. 'In every syllogism considered as an argument to prove the conclusion there is a petitio principii.'
Hegel's Induction is that strictly so called or complete induction, the argument from the sum of actual experiences—that per enumerationem simplicem, and διὰ πάντων. Of course except by accident or by artificial arrangement such completeness is impossible in rerum natura.
P. [326], § 190. The 'philosophy of Nature' referred to here is probably that of Oken and the Schellingians; but later critics (e.g. Riehl, Philosoph. Criticismus, iii. 120) have accused Hegel himself of even greater enormities in this department.
P. [328], § 192. Elementarlehre: Theory of the Elements, called by Hamilton (Lectures on Logic, i. 65) Stoicheiology as opposed to methodology. Cf. the Port Royal Logic. Kant's Kritik observes the same division of the subject.