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 1 3|           invisible.~(3) There is a mixture of bodies, however, not
 2 3|          imperceptible by us, but a mixture by which they [i.e. the "
 3 3|     described it in the treatise on Mixture, where we dealt with this
 4 3|          case of these that natural mixture exhibits itself in its most
 5 3|        already in our discourse "On Mixture" how such mixture is possible.
 6 3|     discourse "On Mixture" how such mixture is possible. This being
 7 3|            being the true nature of mixture, it is plain that when bodies
 8 4| intermediate colours arise from the mixture of white and black, so the
 9 4|       numbers at the basis of their mixture, and, consequently, of their
10 4|           all others are derived by mixture.~Again, as Black is a privation
11 7|             when an ingredient in a mixture; easier, for example, to
12 7|         those things are capable of mixture whose extremes are contraries,