* we know by a Standard Meafure of Length ; and it 
4 appears, that this Way of determining Meafurcs of 
* Capacity is not only the mod geometrical, but 
4 alfo exceeding ancient (2)’. By this Rule fome 
Gentlemen at Oxford , in the Year 1687, determined 
the Weight of a cubic (3) Foot of Spring Water , or 
1 728 folid Inches, to be 1000 Ounces Avoirdepois ; 
and by the fame Rule the Capacity and Contents of 
the Standard Bufhel in the Exchequer was deter- 
mined in the Year 1696, with great Care and Exaft- 
nefs: By the fame Rule the Contents of other Vef- 
fels of Capacity have been fettled; and in the fol- 
lowing Table p.yi. I have inferted the Names of fuch 
Meafurcs as are of any Authority, whofe Contents 
are known ; by which the Proportion they bear to 
each other, and to Meafures raifed according to the 
AJfife , as well from the Pound Troy as the Pound 
Avoirdepois , will be readily obferved. 
In the next place let us compare the Experiment 
made upon the cubic Foot of Spring Water with that 
upon the Winchefier Bufhel, and we fhall find an 
uniform and perfect Agreement between them; and 
that, upon each Trial, a cubic Velfel, the Sides 
whereof were equal to an Englifh Foot, did contain 
(4.) 1000 Ounces Avoirdepois of Spring Water. From 
hence 
(2) Meafures of Bodies are either determined by their folid Con- 
tents, or Weight. Meafures of Content are formed from Cubes of 
afligned Lengths. Bifhop Hooper , p. 2. 
(3) Phil.Tranf N°. 169. 
ox. f>io. Cu. In. ox. Cu • In. 
(4) For as 1131. 14 "Troy : 2145,6 :: 1000 Avoir . :: 1728,041; 
Some Writers upon this Subject fay, that a cubic Foot of Spring- 
Water 
