| Real Acid | Real Acid | Real Acid | |||
| Specific | in 100 | Specific | in 100 | Specific | in 100 |
| Gravity. | parts of the | Gravity. | parts of the | Gravity. | parts of the |
| Liquid. | Liquid. | Liquid. | |||
| 1·5000 | 79·700 | 1·4640 | 69·339 | 1·4147 | 58·978 |
| 1·4980 | 78·903 | 1·4600 | 68·542 | 1·4107 | 58·181 |
| 1·4960 | 78·106 | 1·4570 | 67·745 | 1·4065 | 57·384 |
| 1·4940 | 77·309 | 1·4530 | 66·948 | 1·4023 | 56·587 |
| 1·4910 | 76·512 | 1·4500 | 66·155 | 1·3978 | 55·790 |
| 1·4880 | 75·715 | 1·4460 | 65·354 | 1·3945 | 54·993 |
| 1·4850 | 74·918 | 1·4424 | 64·557 | 1·3882 | 54·196 |
| 1·4820 | 74·121 | 1·4385 | 63·760 | 1·3833 | 53·399 |
| 1·4790 | 73·324 | 1·4346 | 62·963 | 1·3783 | 52·602 |
| 1·4760 | 72·527 | 1·4306 | 62·166 | 1·3732 | 51·805 |
| 1·4730 | 71·730 | 1·4269 | 61·369 | 1·3681 | 51·068 |
| 1·4700 | 70·933 | 1·4228 | 60·572 | 1·3630 | 50·211 |
| 1·4670 | 70·136 | 1·4189 | 59·775 | 1·3579 | 49·414 |
WEIGHTS AND MEASURES.
Troy, or Apothecaries' Weight.
1 Pound = 12 Ounces. 1 Ounce = 8 Drachms. 1 Drachm
= 3 Scruples. 1 Scruple = 20 Grains. (1 Ounce Troy = 480
Grains, or 1 Ounce Avoirdupois plus 42·5 grains.)
Avoirdupois Weight.
1 Pound = 16 Ounces. 1 Ounce = 16 Drachms.
1 Drachm = 27·343 grains. (1 Ounce Avoirdupois = 437·5 grains.)
(1 Pound Avoirdupois = 7000 Grains, or 1 Pound Troy
plus 2½ Troy Ouncesplus 40 grains.)
Imperial Measure.
1 Gallon = 8 Pints. 1 Pint = 20 Ounces. 1 Ounce = 8 Drachms.
1 Drachm = 60 Minims. (A Wine Pint of water measures 16 Ounces,
and weighs a Pound.)
An Imperial Gallon of water weighs 10 Pounds Avoirdupois, or
70,000 Grains. An Imperial Pint of water weighs 1¼
Pound Avoirdupois. A fluid Ounce of water weighs 1 Ounce Avoirdupois,
or 437·5 Grains. A Drachm of water weighs 54·7 Grains.