IV. Proportion not the Cause of Beauty in the Human Species 172 V. Proportion further considered 178 VI. Fitness not the Cause of Beauty 181 VII. The Real Effects of Fitness 184 VIII. The Recapitulation 187 IX. Perfection not the Cause of Beauty 187 X. How far the Idea of Beauty may be applied to the Qualities of the Mind 188 XI. How far the Idea of Beauty may be applied to Virtue 190 XII. The Real Cause of Beauty 191 XIII. Beautiful Objects Small 191 XIV. Smoothness 193 XV. Gradual Variation 194 XVI. Delicacy 195 XVII. Beauty in Color 196 XVIII. Recapitulation 197 XIX. The Physiognomy 198 XX. The Eye 198 XXI. Ugliness 199 XXII. Grace 200 XXIII. Elegance and Speciousness 200 XXIV. The Beautiful in Feeling 201 XXV. The Beautiful in Sounds 203 XXVI. Taste and Smell 205 XXVII. The Sublime and Beautiful compared 205 PART IV. I. Of the Efficient Cause of the Sublime and Beautiful 208 II. Association 209 III. Cause of Pain and Fear 210 IV. Continued 212 V. How the Sublime is produced 215 VI. How Pain can be a Cause of Delight 215 VII. Exercise necessary for the Finer Organs 216 VIII. Why Things not Dangerous sometimes produce a Passion like Terror 217 IX. Why Visual Objects of Great Dimensions are Sublime 217 X. Unity, why requisite to Vastness 219 XI. The Artificial Infinite 220 XII. The Vibrations must be Similar 222 XIII. The Effects of Succession in Visual Objects explained 222 XIV. Locke's Opinion concerning Darkness considered 225