Part Ii., =the Art of Dyeing Silk:= Ungumming and Boiling for

White.--For Boiling of Silks Intended to be Dyed.--Observations on Ungumming and Boiling.--Of White.--Of Whitening.--Sulphuring. --Observations on Whitening and Sulphuring.--Of Aluming.--Remarks on Aluming.--Of Blue.--Remarks on the Blue of Indigo.--Of Yellow.--Remarks on Yellow.--Aurora, Orange, Mordore, Gold Colour and Chamois.--Red and Crimson.--Remarks on Crimson.--Of False Crimson or the Red of Brazil.--Remarks on the Red, or Crimson of Brazil Wood.--Of Scarlet, Orange, Red and Cherry Colour.--Preparation of the Carthamus or Bastard Saffron.--Remarks on the Dye of Carthamus or Bastard Saffron.--Of the False Poppy or Fire Colour Produced with Brazil Wood.--False Rose Colour.--Of Green. --Remarks.--Of Olives.--Remarks.--Of Violet.--Of Fine Violet, or Violet in Grain.--Of False or Common Violets or Lilac.--Of the Violet of Logwood.--Remarks.--Violet of Logwood and Verdigris.--Violets of Brazil and Logwood.--Remarks.--Violets from Brazil Wood and Archil. --Of Purple, Gillyflower, and of Fine Cochineal or Purple.--Of False Purple.--Of Maroons, Cinnamons and White Lees.--Remarks.--Of Nut Greys. Thorn Greys, Black and Iron Greys and others of the same Species.--Of Black.--Softening of Black.--Black in the Raw.--Remarks on Black.--Particular Process Communicated by M. Hellot.--Genoa Crimson, a Process Proved in May, 1743.--Violet Crimson of Italy.--Half Violet.--Genoa Black for Velvets.