The following are the sizes and weights of drawing papers:
| Inches. | Lbs. | |||||
| Emperor, | 72 | × | 48 | 620 | ||
| Antiquarian, | 53 | × | 31 | 250 | ||
| Double Elephant, | 40 | × | 26¾ | 136 | ||
| Atlas, | 34 | × | 26 | 98 | ||
| Columbier, | 34½ | × | 23½ | 102 | ||
| Imperial, | 30 | × | 22 | 72 | ||
| Elephant, | 28 | × | 23 | 72 | ||
| Super Royal, | 27 | × | 19 | 54 | ||
| Royal, | 24 | × | 19 | 44 | ||
| Medium, | 22 | × | 17½ | 34 | ||
| Demy, | 20 | × | 15½ | 25 | ||
| Large Post, | 20¾ | × | 16¾ | 23 | ||
| Post, | 19 | × | 15¼ | 20 | ||
| Foolscap, | 17 | × | 13½ | 15 | ||
| Pott, | 15 | × | 12½ | 10 | ||
| Copy, | 20 | × | 16 | 20 | ||
To Make Bronzed Paper.
Dissolve gum lac in four parts by volume of pure alcohol, and then add bronze or other metal powder in the proportion of one part to every three of the solution. A smooth paper must be chosen, and the mixture applied with a fine brush. The coating is not dull, and may be highly burnished.
Another process consists in first applying a coat of copal or other varnish, and when this has become of a tacky dryness, dusting bronze powder over it. After remaining a few hours, this bronzed surface should be burnished with an agate or steel burnisher.
To Make Drawing-Paper Transparent.
Drawing paper of any thickness may be made perfectly transparent by damping it with benzine. India ink and water colors can be used on this paper. The paper resumes its opacity as the benzine evaporates, so that any place that has not been duly traced requires to be redamped with the benzine for that purpose. A sponge should be used for the application.
To Make Paper Water-Proof.
The following is a recipe for making paper water-proof:—Add a little acetic acid to a weak solution of carpenters’ glue. Dissolve also a small quantity of bichromate of potash in distilled water, and mix both solutions together. The sheets of paper are drawn separately through the solution, and hung up to dry.