This plan is adopted by our first operators with the greatest success.
If the operator should allow the hyposulphite solution to run over the plate unevenly, it is quite likely that white or blue streaks would result.

These it is impossible to remove without injury to the impression.

Some, in order to prevent this, breathe over the surface, thus moistening it and putting it in a condition to receive the solution with greater uniformity.

The plate should be well washed with water before gilding.
Gilding, or Fixing the Image .-- The next process to be given is that for fixing the image on the plate.

This is done by precipitating a thin film of gold over the surface and is productive of the most brilliant effect when prepared immediately after the plate has been washed with water after the application of the hyposulphite solution, and before the plate has been allowed to dry.