The Dictionary Of Photography

A True Historic Record Of The Art & Practice Of Photography 100 Years Ago.

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Varnish
Or
(3)
White hard varnish Methylated spirit .
15 ozs 25 M
The above varnishes must be flowed over the negative, and then dried before a brisk fire. The following may be applied without warming: -
(4)
Negative varnish Liq. ammonia *88o
5 ozs.
Add sufficient to cause the cloudiness first formed to disappear.
Or
White hard varnish...... .....
Liq. ammonia *88o ...
Water          ......... ... ..
Burton has strongly recommended the following
Sandarac ............
Venice turpentine......... ..
Oil of turpentine ...... .....
Alcohol (sp. gr. -825)         ........
10 ozs. As above. 5 ozs.
I lb.
4 fluid ozs.
8 n »»
1 gallon.
The alcohol should be poured over the gum, which will dissolve in a few hours without heat, if the vessel be occasionally shaken. The Venice turpentine is then added, and the measure rinsed out with the oil of turpentine, which is also added. The varnish is then ready for use.
Black Varnish.
Benzine India-rubber... Asphalt Lamp black ...
  « • » » »
  »• •• •
... 1000 parts. ■ . 6 .. ... 3oo »i ... Quant, suff.
633