Note 128 — Chapter XVII · COMBINATION OF VEGETABLE AND MINERAL TANNAGE.
Reading edition
East India sheep and goat are generally so heavily oiled with sesame oil (up to 30 per cent. of their weight), that it is desirable in many cases rather to diminish than increase the oil, which may be done by washing with soap solutions, preferably before aluming.
[129] Eng. Pat. Jensen 13126, 1889.