Scientific American 14, 21.12.1850
Gents.
I noticed in your most excellent paper of the 2nd of NOv. last, that some gentleman had seeen a fine specimen of enamel varnish on some Talbotypes, and wishes to have a good varnish of a similar kind. For the benefit of the readers of the Scientific American I furnish the following original recipe for a vanish, which, when spread over any picture or painting, will preserve the same better than anything else I have ever seen: it is as follows:
Take honey, 1 pint; the qwhites of two dozen fresh hens eggs; 1 ox. of good clean isinglass; 20 grains of hydrate of potassium; ½ oz. of chloride of sodium - mix together over a gentle heat of 80 and 90 degs. Fahr.; be careful not to let the mixture remain long enough to coagulate the albumen of the eggs; stir the mixture thoroughly, then bottle; it is to be applied as follows - one table-spoonful of good oil of turpentine, spread on the picture as soon as mixed.
J. P. Henderson, M. D.,
Editor of the Era.
Coloriasto on väriaiheisten tekstien (ja kuvien) verkkoarkisto
(Archive for colour themed articles and images)
INDEX: coloriasto.net
Ei kommentteja :
Lähetä kommentti