A 1929 technical article by Dr. H. Bernhard on using Neolan dyestuffs (chrome-complex acid dyes) for printing silk and wool. It gives printing recipes with British gum thickening, glycerine, acetate of chrome and ammonium tartrate, plus steaming and finishing instructions. It also covers Vigoureux (slubbing) printing and hydrosulphite discharge printing on silk and wool, with lists of suitable Neolan colours. The final page shows printed swatches of silk and wool samples, including discharge effects.