VI.—Table showing the Quantity of Bleaching Liquid at 6° Twaddell (Specific Gravity 1·030) required to be added to Weaker Liquor to raise it to the given Strengths.
| Strength of Sample in 1/12°. | Required Strength. | Proportions Required. | |
| Given Sample. | Liquor at 6°. | ||
| parts. | part. | ||
| Water | 8/12° | 8 | 1 |
| 1 | " | 9¼ | 1 |
| 2 | " | 11 | 1 |
| 3 | " | 13½ | 1 |
| 4 | " | 17 | 1 |
| 5 | " | 23 | 1 |
| 6 | " | 35 | 1 |
| 7 | " | 71 | 1 |
| Water | 6/12° | 11 | 1 |
| 1 | " | 13½ | 1 |
| 2 | " | 17 | 1 |
| 3 | " | 23 | 1 |
| 4 | " | 35 | 1 |
| 5 | " | 71 | 1 |
| Water | 4/12° | 17 | 1 |
| 1 | " | 23 | 1 |
| 2 | " | 35 | 1 |
| 3 | " | 71 | 1 |
| Water | 3/12° | 23 | 1 |
| 1 | " | 35 | 1 |
| 2 | " | 71 | 1 |
VII.—Comparative French and English Thermometer Scales.
VIII.—Weights and Measures of the Metrical System.
(From the British Pharmacopœia.)
WEIGHTS.
| 1 Milligramme | = | the thousandth part of one gramme, or | 0·001 | gramme. | |
| 1 Centigramme | = | the hundredth | " " | 0·01 | " |
| 1 Décigramme | = | the tenth | " " | 0·1 | " |
| 1 Gramme | = | weight of a cubic centimètre of water at 4° C. | 1·0 | " | |
| 1 Décagramme | = | ten grammes | 10·0 | " | |
| 1 Hectogramme | = | one hundred grammes | 100·0 | " | |
| 1 Kilogramme | = | one thousand grammes | 1,000·0 | " | |
MEASURES OF CAPACITY.
| 1 Millilitre | = | 1 | cubic centimètre, | or the measure of | 1 | gramme of water. |
| 1 Centilitre | = | 10 | " | " | 10 | " |
| 1 Décilitre | = | 100 | " | " | 100 | " |
| 1 Litre | = | 1,000 | " | " | 1,000 | " |