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[[image]] To varnish a cold picture with cold varnish it is liable to the evil of not spreading well, but resembling water on a waxed table. To obviate this, it is necessary to warm both the varnish & the Picture. In the Summer, a short exposure of them to the Sun is sufficient. If the evil has already occurred, breathe on the spot, or rub it with the finger & then it will spread under the brush.

[[image]] A thick coat of Popal Varnish, at any time on a Picture, is liable to two objections. It becomes brown, and by drying hard, cracks the soft paint beneath it. But in using [[strikthrough]] a very thin [[/strikthrough]] it much diluted [[strikethrough]] and [[/strikethrough]] instead of forming a coat, it is in a degree absorbed by the paint becoming incorpated with it, and rendering it less liable to be injured if the subsequent varnish should be taken off.

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[[image]] Without this guard, at an unlucky moment, the picture may receive a fatal injury.