416 PAINTING IN GLASS. 



on the same glass, though already coloured, they could shew other 

 kinds of colours where there was occasion to embroider draperies, 

 enrich them with foliages, or. represent other ornaments of gold, 

 silver, &c. 



In order to this, they made use of emery, grinding or wearing 

 down the surface of the glass till such time as they were got through 

 the colour to the clear glass. This done, they applied the proper 

 colours on the other side of the glass. I3y these means, the new 

 colours were hindered from running and mixing with the former, 

 when they exposed the glasses to the fire, as will appear hereafter. 

 When indeed the ornaments were to appear white, the glass was 

 only bared of its colour with emery, without tinging the place w ith 

 any colour at all ; and this was the manner by which they wrought 

 their lights and heightenings on all kinds of colour. 



The first thing to be done, in order to paint or stain glass in the 

 modern way, is to design, and even colour the whole subject on 

 paper. Then they choose such pieces of glass as are clear, even^ 

 and smooth, and proper to receive the several parts ; and proceed 

 to distribute the design itself, or the paper it is drawn on, into 

 pieces suitable to those,, of the glass, always taking care that the 

 glasses may join in the contours of the figures, and the folds of the 

 draperies ; that the carnations and other liner parts may not be 

 impaired by the lead with which the pieces are to be joined together* 

 The distribution being made, they mark all the glasses as well as 

 papers, that they may be known again : which done, applying 

 every part of the design upon the glass intended for it*, they copy 

 or transfer the design upon this glass with the black colour diluted 

 in gum-water, by tracing and following all the lines and strokes as 

 appear through the glass with the point of a pencil. 



When these strokes are well dried, which will happen in about 

 two days, the work being only in black and white, they give it a 

 slight wash over with urine, gum-arabic, and a little black : and 

 repeat it several times, according as the shades are desired to be 

 heightened ; with this precaution, never to apply a new wash till 

 the former is sufficiently dried. This done, the lights and risings 

 are given by rubbing off the colour in the respective places with a 

 wooden point, or the handle of the pencil. 



As to the other colours above mentioned, they are used with 

 gum-water, much as in painting in miniature ; taking care to apply 

 them lightly, for fear of effacing the outlines of the design ; or even 



