Note 2 — Chapter VII
Reading edition
The copper deposited by electro-deposition is little more than a thin skin of metal, which is then backed by a block of type-metal of the same thickness as the usual letterpress type.
Reading edition
The copper deposited by electro-deposition is little more than a thin skin of metal, which is then backed by a block of type-metal of the same thickness as the usual letterpress type.