Hunt, Robert, 1807-1887, author, Contained in (work): Hunt, Robert, 1807-1887. Manual of photography · London ; Glasgow : Richard Griffin and Company · leaf 79
this chamber are placed two mercury boxes, each contain- ing a small quantity of that metal. One of these is shown in section. Each box is placed over a water bath, supplied by means of a pipe with water from a cistern above, and a small sand bath is placed between the mercury box and the water… … lug. 33. The windows being closed, any mercurial vapours which may escape from the box pass out into the air through proper venti- lators, and the operator is thus protected from the injurious effects of the mercury. Fixing the Daguerreotype Image.- — It lias already been stated that the solution…
Photography
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