This section is from the book "Arts & Crafts Magazine Vol1-2", by Hutchinson & Company.
Of course, a good press for printing etchings is rather a costly affair. There is a way, however, of proving your plate without a press. Ink it in the usual way, and then pour plaster of Paris over it. When the plaster hardens, warm the plate and take off the plaster, which you will find has taken an impression equal to the finest India proof.