On the External Affections of Mind, in general, 262 On the less Definite External Affections, 264 LECTURE XVIII. On the more Definite External Affections, 269 LECTURE XIX. On the Corporeal Part of the Process, in Sensation, 283 LECTURE XX. Particular Consideration of our Sensations, 298 On Smell, 300 On Taste, 301 On Hearing, 305 LECTURE XXI. Continuation of the same Subject, 312 On Touch, 326 LECTURE XXII. On the Feelings ascribed to the Sense of Touch, 328 Analysis of these Feelings, 330 LECTURE XXIII. Continuation of the same Subject, 345 LECTURE XXIV. Continuation of the same Subject, 358 LECTURE XXV. On the Distinction between Sensation and Perception, 379 On the Primary and Secondary Qualities of Matter, 384 LECTURE XXVI. On Dr. Reid's supposed Confutation of the Ideal System, 395 Hypothesis of the Peripatetics regarding Perception, 396 Opinion of Locke--Hobbes--Des Cartes--Arnauld--Le Clerc De Crousaz, regarding Perception, 399 LECTURE XXVII. Examination of Dr Reid's supposed Confutation of Idealism 411 LECTURE XXVIII. Conclusion of the Subject, 427 On Vision,--Analysis of the Feelings ascribed to it, 431 LECTURE XXIX. Continuation of the same Subject, 442 LECTURE XXX. History of Opinions regarding Perception, 459 Opinion of the Peripatetics, 462 ---- of Des Cartes, 464 ---- of Malebranche, 469 ---- of St Austin, 472 LECTURE XXXI. ---- of Leibnitz, 474 On the External Affections combined with Desire, 479 Attention, 482 LECTURE XXXII. Continuation of the Same Subject, 490 On the Internal Affections of Mind, 497 On the Classification of these Affections, 500 LECTURE XXXIII. On Locke, Condillac, and Reid's Classification of the Mental Phenomena, 505