Salmon, William: Polygraphice; Or, The Art of Drawing, Engraving, Etching, Limning, Painting, Washing, Varnishing, Colouring and Dying: In Three Books ... (London, 1672)

Os Mineral Colours. 237
ed with a convenient proportion os
powdered gja(s? in three or sour hours
susion, gave a lovely Saserine blew.
XXII. Glass is tinged Green (by the
Glass-menJ with the Calx of Venm i
which Calx mixed with an hundred
times its weight os sair glafs, gave in 617
(ion a blew coloured mafs.
XXIII. Putty (which is Tin calcine
edj as it is white os it sels 5 sb it turns
the purer sort os glass metal into a w|ite
mais3which when opacous eriough3ferves
sorphite AmeU
XXI V. Thisi^^e ^e/is asit were
the Bails of all thole fine Concretes.that
G61d-lmiths3 and ieveral Artificers u(e3
in the curious art of Enameling 5 sor this
white and fufeable lubftance,will re«
ceive1 into it (elf ? without (polling them^
the colours of divers other iVlineral fiiB-
ftances, which like it will endure the
sire, V"7 ||r Jld .
XX V. Glass is alio tinged blew With
the dark mineral called Zaffora 5 and
with Manganeji or Magneffza in a certain
proportion., which will tinge glafs of a
red