| Inches. | |
| Foolscap | 17 × 13½ |
| Crown | 20 × 15 |
| Post | 19¼ × 15½ |
| Demy | 22½ × 17½ |
| Medium | 24 × 19 |
| Royal | 25 × 20 |
| Double Pott | 25 × 15 |
| "Foolscap | 27 × 17 |
| Super Royal | 27 × 21 |
| Double Crown | 30 × 20 |
| Imperial | 30 × 22 |
| Double Post | 31½ × 19½ |
The corresponding sizes of hand-made papers may differ slightly from the above.
Although the above are the principal sizes named, almost any size can be made to order.
The following is an extract from the report of the Committee of the Society of Arts on the deterioration of paper, published in 1898: “The committee find that the paper-making fibres may be ranged into four classes:—
- A. Cotton, flax, and hemp.
- B. Wood, celluloses (a) sulphite process, and (b) soda and sulphate process.
- C. Esparto and straw celluloses.
- D. Mechanical wood pulp.
In regard, therefore, to papers for books and documents of permanent value, the selection must be taken in this order, and always with due regard to the fulfilment of the conditions of normal treatment above dealt with as common to all papers.”
“The committee have been desirous of bringing their investigations to a practical conclusion in specific terms, viz. by the suggestion of standards of quality. It is evident that in the majority of cases, there is little fault to find with the practical adjustments which rule the trade. They are, therefore, satisfied to limit their specific findings to the following, viz., Normal standard of quality for book papers required for publications of permanent value. For such papers they would specify as follows:—
“Fibres. Not less than 70 per cent. of fibres of Class A.
“Sizing. Not more than 2 per cent. rosin, and finished with the normal acidity of pure alum.
“Loading. Not more than 10 per cent. total mineral matter (ash).