Dijsertaiiom on .Coins, * We ights, &c.

6* A sixth may be had by the Ounce os 434 Grains Troy,which is deduced from the Denarius, as I have stated it at62 Grains Troy. This Congius is in Weight, I mean containsWater of the Weight of 52080 Grains Troy, which may bethus made out. A Sextarius contains 20 Roman Ounces ofWater, and a Congius 6 Sextarii. If therefore my Ounceof 434 gr. be multiplied into 20x6 it will give 52080Grains Troy for the Congius. These Grains being reducedinto Inches, after Dr. Arbuthnot' s Method, p- 8 r. will makethis sixth Congius of 205.5789 solid Inches. He makes

760 pt. equal to % solid Inches. Then

Gr si. Gr. si. Dec.

As 760 : 3 : : 52080 : 205.5789.

Some Persons may perhaps think the Denarius set too highat 62 Grains Troy, and chuse to set it at 61. By this Esti-mate we should have a

7. Of 51240 Grains Troy , which would consist of202.2631 solid Inches, and would differ from the Congiusat a Medium defcrib’d in the next Chapter of dry Measuresby no more than 0.977 P arts of a solid Inch.

The Congii stand thus :

Villalpandus's, - - -

Arbuthnot' s, - - - -

My First, - - - .

My Second, - - - -

Pætus s, - - - -

Arbutlmos s from the Roman Foot,Savotus's, - - - -

sol. In. Dec.207.4737207.0676205.5789202. 2631

i 97-34i5

- r95-3i39195.0986

Before we can adjust the Congius to the Englijh LiquidMeasures, we must know how many solid Inches are in ourWine Gallon, Pint, ^fc.

F

It