By changing the exposure series, the positive and negative lines with the same micron number can be exist on the tested plate.

The bare vaulting of trees along the Mall was ceiled with lapis lazuli, and arched above snow that shone like splintered crystals.

From a dark corner of the slum a shadow was creeping silently out, like a thieving little dog nosing around, trying to find an unguarded break in the police cordon.