Note 91 — Chapter XIII · DELIMING, BATING, PUERING AND DRENCHING.
Reading edition
Eng. Pat. 14,889, 1888.
[92] Compare also Journ. Soc. Chem. Ind., 1889, p. 954.
Reading edition
Eng. Pat. 14,889, 1888.
[92] Compare also Journ. Soc. Chem. Ind., 1889, p. 954.