SECT. XV. f. CLASSES OF IDEAS. 



SECT. XV, 



OF THE CLASSES OF IDEAS. 



I. i. Ideas received in tribes. 2. We combine them 

 further, or abftracJ from thefe tribes. 3. Complex 

 ideas. 4. Compounded ideas. Simple ideas, modes , 

 fubftances, relations, general ideas. 6. Ideas of re- 

 flexion. 7. Memory and imagination imperfecJly de- 

 Jined. Ideal prefence. Memorandum-rings, II. I . 

 Irritative ideas. Perception. 2, Senfitive ideas, 

 imagination. 3. Voluntary ideas, recolleftion* 4. 

 AJfociated ideas, fuggejiion. III. i . Dejinitions of 

 perception, memory, i. Reafoning, judgment, doubt- 

 ing, diftinguijhing, comparing. 3. Invention. 4. 

 Confcioufnefs. 5. Identity. 6. Lapfe of time. J. 

 Free-will. 



I. AS the conftituent elements of the material 

 world are only perceptible to our organs of fenfe 

 in a ftate of combination ; it follows, that the ideas 

 or fenfual motions excited by them, are never re- 

 ceived fingly, but ever with a greater or lefs degree 

 of combination. So the colours of bodies or their 

 hardneires occur with their figures : every fmell 

 and tatte has its degree of pungency as well as its 

 peculiar flavour : and each note in mufic is com- 

 bined with the tone of fome inftrument. It ap- 

 pears from -hence, that we can be fenfible of a 

 number of ideas at the fame time, fuch as the 

 whitenefs, hardneis, and coldnefs, of a mow-ball, 



and 



