of white tissue paper cut to fit the various windows, allowing one-fourth of an inch extension on all four sides. Immerse the paper thoroughly on both sides in oil; with a dry, clean cloth wipe off the oil; again immerse the papers, let them remain in the oil for some minutes and a second time wipe the oil from both sides of each paper. This makes the paper almost transparent.
Fig. 433.—Window in detail with one shutter open and the other closed.
The window frame or sash, is made of strips of black or inked paper, one long, narrow strip pasted down the entire centre length of each window glass and a wider strip fastened across the first strip at the centre, from side to side of the glass ([Fig. 434]). Keep the glass and the sash divisions perfectly smooth while fastening them together.
Fig. 434.—Window glass.
When all are ready, close the shutters of each room in turn, and place first one and then another side flat down on top of the table and brush a little glue all around the edges of the window opening ([Fig. 435]); lay the glass over the opening, making sure that the edges of the glass extend evenly out on the wall surface from all sides. Do not rub the glass, press it tightly down with a dry cloth.