On the Measures of Liquids.
The Italic ceramium contains choes (or congii) viij.
The chus or congius contains sextarii vj.
The sextarius contains cotylæ ij, which are also called tryblia.
The cotyla, or tryblium, contains great mystra iij, but acetabula iv.
The great mystrum contains acetabulum j, and a third.
The acetabulum contains cyathus j, and a half.
The cyathus contains small chemæ, or small mystra ij.
But if you would wish to know the measure of the weights of liquids (for there are many differences of liquid substances according to weight), we shall illustrate this by the example of oil, wine, and honey. Honey, then, is heavier than wine by a fourth part, and a tenth part more, which makes altogether almost a third part. For the same measure of honey as of wine contains the weight of the wine and a third part more. Honey is heavier than oil by one half; for it contains the whole weight of the oil, and a half part of the weight besides. Wine exceeds oil by a ninth part, for it contains the whole weight of the oil and a ninth part more. In order to make this appear more manifest, we shall subjoin, as in a diagram, the proportion of the particular measures, it being obvious that the words oil, wine, and honey, are to be understood as expressed in every line of the series.
| The Italian | Of oil. | Of wine. | Of honey. |
|---|---|---|---|
| Ceramium contains | lib. lxxij | lib. lxxx | lib. cviij. |
| Chus, or congius | lib. ix | lib. x | lib. xiiss. |
| Sextarius | oz. xviij | oz. xx | oz. xxvij. |
| Cotyle or hemina | oz. ix | oz. x | oz. xiiiss. |
| Great mystrum | oz. iij | oz. iij, scr. viij | oz. ivss. |
| Acetabulum | dr. xviij | oz. ij, scr. xij | oz. iij, scr. ix. |
| Cyathus | dr. xij | oz. iss, scr. iv | oz. ij, dr. ij. |
| Small mystrum | dr. vj | scr. xx | dr. ix. |