[8oi3 
another Arch ( to defend the former ) more raifed from 
the flat ( than was the former ) made ot lelTer Stones, and 
with ftraight joints s ( not locked as the former. ) Over 
all which, the walling was continued upwards ( in an or- 
dinary way of walling,) forming ( with the Back ) two 
vaft Tunnels of Stone ; and, between them ('over the 
middle of the Chimney ) a great Window. The Dimen^ 
fions of all, I have thought fit here to fubjoin. 
AB. The Breadth between the Jambs , from infide 
to inlide, i8 Foot. 
CD. The Depth of the Stones in the Lower Arch, 22 
Inches. Locked one into another^ with a crooked 
Joint, as in the Figure. 
The number of them, as is there to be feen. 
DE. the Diftance, in walling, between the Arches, 
2 Foot and 7 Inches. ' 
EF. The Depth of the Stones for the Upper Arch, 15 
Inches : with a flreight Joint. 
GH. The place of the two Tunnels. 
K. A window between them. 
The other Chimney over againftit, on the oppofite 
fide of the fame Kitchin, was much after the fame man- 
ner; but f as I remember ) fomewhat lefs , and with fome 
difference in the Mafonry. 
Some 
