This may be done by putting in the oxide in excess.

It should be frequently shook, and when wanted for bottling it should be allowed to stand in order to settle.

When this is done the solution may be poured off, and reduced by adding to it an equal quantity of water; then it is ready for use.
This constitutes a gilding dissolvent now in our market.
Solution for Removing Specks .-- There is probably no one cause of complaint so general as "what makes those black specks ?" There are several causes which produce them, and probably the most general are dust, rouge, or a spray of moisture on the plate.

It this be the case, there is no solution which can remove them, as they have prevented a chemical action with the silver, and their removal would only expose the surface of the plate which in itself would afford a contrast with the impression.

Another and less dangerous source of these specks is organic matter contained in the solution employed in dissolving the chemicals, or the water in washing.