[ s* ] 
Gamboge makes a good yellow Print, and appears 
very lively in the Day-time, but can fcarce be feen 
by Candle-light : Mixed with Carmine, it affords a 
much better Colour. 
Burnt Umber affords a Brown ; but is more agree- 
able, if tindured with a little Lake. 
Blue may be compofed of Verditer and Indico ; 
but is troublefome to clear off ; and, after all, has but 
an indifferent Effed. 
Green is likewife, in my Opinion, not very agree- 
able ; but, if defired, Sap-Green ferves the Purpofe 
befl. 
Indian Ink makes the beft Black; and affords 
Pidures very like thofe from Copper-Plates. 
All thefe Colours, except Gamboge, Sap-Green, 
and Indian Ink, muft be ground extremely fine, with 
Gum-water of an exad Strength : For, if there be 
too much Gum, the Colouring will not eafily be 
cleared away from the wax Impreflion, nor readily 
come off upon the Paper; and, if too little, every 
Touch will fpoil your Pidure, after you have worked 
it off. Some few Trials will teach the proper Tem- 
per it ought to have. 
If you would have the Hair, Face, Robes, or any 
Parts of the Print to be of different Colours, you 
muft fpread them fo on your wax Impreflion. I 
have worked off many in that Manner, which I 
have here to fhew ; but, as it is much more trou- 
blefome to lay on the Colours thus, and requires a 
good deal of Finifhing with the Pencil afterwards, 
I think it alfo lefs proper for the Pidure of a Medal, 
than one /Ingle Colour. s 
I am 
