Be careful of the bichloride of mercury, because it is a poison.
And now a word as to those parts of the prints which have been treated with bichloride of mercury.
No precipitate with tartaric acid, nor with bichloride of platinum.
It seems to the writer probable that bichloride of mercury may be as useful, as it is certainly more manageable.
If you determine to have the room repapered, wet it with bichloride before you bring in the workmen.
