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' Fiffl:. as to the Pavement, it was fecur*d on every 
Side, and the Edges of it refted on a very firm and 
neat built Wall, made of Roman Brick, fquar’d Stone 
and headed Flint ; between five and fix Foot deep be- 
low the Surface of the Pavement, and full twenty three 
Inches thick; which we may fuppofe to have been two 
foot by the Roman Meafure. The Bricks were not in 
regular courfes, as they are to be feen in thole Roman 
Buildings, which are in view above Ground ; but with- 
out order difpers’d about in the Wall. The Top of the 
Wail indeed was but fifteen Inches thick; and that 
was cover’d with the Bricks firft mention’d, which 
bounded the Pavement : but about fourteen Inches be- 
low the Top, there was a Set-ofF (as our Mafons term 
it) in the infide of the Wall, eight Inches broad. We 
did not dig up the Foundation of the Pavement to the 
Bottom, but opened it at one Corner only, that we 
might difeover how it was Fram’d : for wdien it was 
bor’d through, they obferv’d, next under the Tejfer£, a 
Bed of very ftrong Mortar, more tlian a Foot thick ; 
under the Mortar a Bed of Clay two Foot thick ; and 
under the Clay a firm Foundation of Brick. We ob- 
ferv’d the Clay (which the Ground thereabouts do not 
afford) to be very fine and red, and alfb clofe; no 
.doubt but carefully Ramm’d. The Surface of the 
Clay was neatly pitch’d with finall Flint and Stones, 
Pointed at their lower ends, and Headed at their up* 
per ends. This Pitching or Paving is by Vitruvius 
. call’d Stutumimtio \ and the Stones ’tis done with, he 
extent. Sed coagmentorum compofitio planam habeat inter fe dircQio- 
nem. Si Tefleris ftruftum erit, ut eae omnes angulos habeant seqxiales, 
nullibiquc a fricatura extantes. Cum enim anguli non fucrint omnes 
squalLter plani, non critexada ut oportet'fricatura. 
calls 
