34

Observations on Dr. ArbuthnotV

It is commonly supposed, that there are in the WineGallon 231 solid Inches. Upon this Supposition, which is afalse one, and yet made Use os by Dr. Arbuthnot and others,the eighth Part of a Gallon, or Pint, will be -^-=28^=28.875solid Inches. The Congius will be found by this Proportion:

sol. In. Pi. sol. In.

As 28.875 : j : : 205.5789 to a fourth Number,,

which will give the Pints, c We. in the Congius. This fourth

Pt. s. In. Dei.

Number is 7 + 3.4539.

Pt. /. In. Dec.

Since Dr. Arbuthnot'% Congius contains 7 + 4.9426, the Ex-

•Pt. s In. Dec.

cess of his Coftgius above mine will be 0+1.4887.

So much for the Estimate of the Wine Gallon made Use ofby the Gangers, and by which the Excise is paid ; but theywho are coneern’d, know well enough that it is wrong: Forby an Experiment tried before several of our most eminentPhilosophers in public Posts, as Flamjlead , Halley, &c. atwhich Mr. Ward was present, the Wine Gallon amounted tono more than 224 solid Inches; at which Rate the Pintwill be exactly 28 solid Inches. The Proportion will nowstand thus :

/. In. Pt. /. In. Dec. Pt. f. In * Dec.

As 28 : 1 : : 205.5789 : 7 + 9.5789.

The Difference now between us is more considerable ; formy Congius will exceed his by 4.6363 solid Inches.

Pt. /. In. Dtc.

My Congius being - 7 + 9.5789His - - 7 + 4.9426

The

Excess above his

0 + 4.6363