Add about a teaspoonful to two ounces of the gilding.
Solution, for Increasing the Brilliancy of the Daguerreotype .-- This solution will have the effect to thoroughly cleanse the surface of the gilded plate and excite a powerful influence on the general character of the impression.

To a solution of three ounces of water, in which is dissolved a quarter of an ounce of cyanide of potassium, add one teaspoonful of a solution containing six ounces of water and half an ounce of each pure carbonate of potash, alum, common salt, gallic acid, sulphate of copper, and purified borax.

While the plate is wet, pour on a little, and heat it with a powerful blaze.

The effect will be quickly produced, in from three to fifteen seconds.

Rinse and dry, as in the gilding.
Bleaching Solution .-- Make a saturated solution of muriate of ammonia (sal ammoniac) in pure water, and filter through paper.