[ 7 ° 1 
Opinion. This leads me to compare our EngViJh 
Foot with the Roman Foot, which Mr. Greaves 
takes as equal to 967 fuch Parts, as ours is icoo. 
The Roman Amphora or ^uadrantal is generally 
allowed ( x ) to be equal to a cubic Roman Foot ; 
and to contain 80 Pounds, or 960 Ounces. Then 
the Side of the Amphora is equal to (*) ,986 Parts 
of the Englijh Foot ; agreeing exa&ly with the Foot 
deduced by Villalpandus from the Congius of VeJ- 
pajian ; and a cubic Vcflel, whofe Sides are equal 
to ,967 Parts of the Englijh Foor, will not contain 
( 1 2 3 ) quite 904^ Ounces; which, if true, reduces 
the Roman Ounce to near 412,-7 Grains Troy. 
» " ■■■■•■ ■ ■ - — -- ■ 
(1) See Bifhop Hooper, p. 152, 175. Greaves's Mif. IVorh^ 
p. 198, 199, 297,303. 
(2) For the cube Root of 960 is 986,1. And 
ex. Parts. 
(3) The Cube of 967 is but 904,231063. And Mr. Greaves 
himfelf fays, an Amphora made by the Pes Colotianus held only 7^ 
Congii , equal to 900 Roman Ounces ; which comes as near the 
Cube of 967, as can be expe£ted from the uncertain Method he 
took to determine the Contents of that Amphora y which was by 
filling it with 7 Congii , and, as he guefled, about an half, of Milium • 
See his Mijcellaneous JVorks , (1737) p- 225. 
The 
