Book, Paragraph

 1   I,  5|  breaking out of a dark blue or black mass of air. When the process
 2   I,  5|          white in contrast with black creates a variety of colours;
 3 III,  3|     band of cloud next to it is black, its colour being intensified
 4 III,  4|          that white colour on a black surface or seen through
 5 III,  4|       surface or seen through a black medium gives red; second,
 6 III,  4|    weaker and less; third, that black is in a sort the negation
 7 III,  4| negation of sight: an object is black because sight fails; so
 8 III,  4|       and bringing it nearer to black. When the sight is relatively
 9 III,  4|      intensified by added fire, black beside black makes that
10 III,  4|        added fire, black beside black makes that which is in some
11 III,  4|       different on white and on black wool), and also by differences
12  IV,  6|        begins to solidify it is black but its consistency comes
13  IV,  7|    preponderance of air, but in black ebony the air has escaped