The Popular recreator. A key to in-door and out-door amusements .. (1873)
London, New York [etc.] Cassell, Petter & Galpin · leaf 105
st way to deter-mine this point is to breathe upon them. If the moisture iscondensed in a perfectly even sheet over the entire surface, itmay be concluded that the cleaning is perfect, but if any lines,smears, or stains appear, the surface must be re-polished withthe soft leather. A good number of… … The edges of the glass should be as carefully cleaned as thesurfaces, inasmuch as they may retain some impurities whichwould cause defects in the pictures and possibly spoil thebath. The next proceeding will be to arrange the background andcamera; and as the important operation of focussing has…
Amusements · Games · Sports
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