de gras

The crude wool-fat, pure “de gras”, imported by the shipload to this country, principally from Marseilles, free from rosin oil, fish oil and other extraneous fats, selling at about 5 cents per pound, yields an article of as good absorbent power as lanolin, when prepared by the following process: 60 parts de gras is freed from grosser impurities by melting and straining.