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No. IV.

Eng. corn Solid Ligulæ. Cyathi. Acetab. Heminæ. Sextarius. pint. inches 48 or 12 or 8 or 2 == 1 == 1. and 0.48 24 or 6 or 4 == 1 — — == 0. 17.04 6 or 11/2 == 1 — — — — == 0. 4.26 4 == 1 — — — — — — == 0. 2.84 1 — — — — — — — — == 0. 0.71

Note, The tables, No. I. and No. III. are exactly copied from Dr Arbuthnot, No. XII. and XIII. I have here gone no higher than the sextarius, as that is the greatest measure mentioned by Celsus; it has its name from making the sixth part of the Roman congius.

I would have taken the table of weights from Dr Arbuthnot also, if he had given one accommodated to Celsus; but as he has not, I have composed the following, No. VI. according to the division of Celsus himself, who tells us[U], that he divides the uncia, or ounce, into seven denarii, and the denarius into six sextantes.

Besides these, in several compositions our author uses semuncia and sescuncia, that is half an ounce and ounce and half; and to save the reader the trouble of reduction, I have given them also a place in the table.