SECT. XIV. i. PRODUCTION OF IDEAS. 113 



or waking hours, and confequently poflefs ideas of 

 fo many of the properties of the external world, 

 and of their own exiftence. 



SECT. XIV. 



OF THE PRODUCTION OF IDEAS. 



It Of material and immaterial beings. Doctrine of St. 

 Paul. II. i. Of the fenfe of touch. Of folidity. 

 2. Of fgure. Motion. Time. Place. Space. 

 Number. 3. Of the penetrability of matter. 4. 

 Spirit of animation foffeffes folidity ', figure, wfibiUty, 

 &c. Of fpirits and angels. 5. The exiftence of ex- 

 ternal things. III. Of vi/ion. IV. Of hearing. 

 V. Of f mil and iafte. VI. Of the organ of fenfe 

 by which we perceive heat and cold, not by the fenfe 

 of touch. VI I. Of the fenfe of extenfion, the whole 

 of the locomotive mufcles may be confidered as one or- 

 gan of fenfe. VIIL Of- the fenfe 5 of hunger, thirft, 

 want offreftj air, fuckling children, and luft. 1 X , 

 Of many other organs of fenfe belonging to the glands. 

 Of pairful fenf at ions from the excefs of light, prejjtlire^ 

 heat, itching, cauflics, and eleclricity. 



I. PHILOSOPHERS have been much perplexed 

 to underftand, in what manner we become ac- 

 quainted with the external world ; infomuch that 

 Dr. Berkley even doubted its exiftence, from having 

 obferved (as he thought) that none of our ideas 

 refemble their correfpondent objects. Mr. Hume 

 aflerts, that our belief depends on the greater dif- 



tinclncfs 



