Book, Paragraph

 1   I,  5|             trenches" and blood-red colours. These, too, have the same
 2   I,  5|          should assume a variety of colours. For a weak light shining
 3   I,  5|             will cause all kinds of colours to appear, but especially
 4   I,  5|       crimson and purple. For these colours generally appear when fire-colour
 5   I,  5|          The light will also create colours by reflection when the mirror
 6   I,  5|          black creates a variety of colours; like flame, for instance,
 7   I,  5|           exception of crimson, the colours are not seen at night because
 8  II,  2|           Water gets its tastes and colours from the kind of earth the
 9 III,  1|             fire-wind, for its fire colours the neighbouring air and
10 III,  2|         them is three-coloured; the colours are the same in both and
11 III,  2|           These are almost the only colours which painters cannot manufacture:
12 III,  2|          manufacture: for there are colours which they create by mixing,
13 III,  2|            or purple. These are the colours of the rainbow, though between
14 III,  2|              The reason is that the colours are not so easy to see in
15 III,  2|     reflected, in others only their colours. Of the latter kind are
16 III,  4| distinguished by the variety of its colours. The reflection in the one
17 III,  4|         case of the halo. The other colours shall be explained later.
18 III,  4|            but purple. It shows the colours of the rainbow; but because
19 III,  4|    corresponds to the oar.~That the colours of the rainbow are those
20 III,  4|         described and how the other colours come to appear in it will
21 III,  4|             completes the series of colours (as we find three does in
22 III,  4|          rainbow appears with three colours; this is true of each of
23 III,  4|             about the appearance of colours are true the rainbow necessarily
24 III,  4|       rainbow necessarily has three colours, and these three and no
25 III,  4|            stuffs the appearance of colours is profoundly affected by
26 III,  4|        often make mistakes in their colours when they work by lamplight,
27 III,  4|           why the rainbow has three colours and that these are its only
28 III,  4|             that these are its only colours. The same cause explains
29 III,  4|            and the faintness of the colours in the outer one and their
30 III,  4|         reaches the sun, and so the colours seen are fainter. Their