348 The Churches of Sherston, Corston, and Netheravon. 
nave and aisle. The room over the porch is approached by a stair 
turret in the angle of the chapel, which retains its original door 
and ironwork. A stone bench-table runs along the west wall of 
this chapel, and in it is the bowl of a piscina of earlier type. This 
cannot be in its original position. Shortly after this the south 
transept, of which the indications before referred to remain, was 
taken down and in its place was erected the present chapel, which 
is continued eastward, extending to three bays in length, and 
overlapping the chancel to within 9ft. 6in. of its entire length. 
The three bays are flanked and divided by buttresses and have the 
moulded plinth and base of the porch and lesser chapel continued 
on, but it will be seen that the courses of masonry in the later 
chapel do not range with those of the earlier which, on the other 
hand, do range with those of the porch. In the outer bays of this 
chapel there are two four-light square-headed windows—the label 
terminals being square, while those in the somewhat similar four- 
light window of the earlier chapel are circular. A closer comparison 
of the windows shows also that the label mould of the eastern 
chapel is of a later section, while the ogee of the head is distinctly 
flatter. There is a similar four-light window in the east wall, but 
without label. In the central bay is a priest’s door with a small 
square window above, but not vertically over it. The roof is a flat 
lean-to, and an embattled parapet is carried along the south of 
both chapels and returned up the slope at the east end. A four- 
centred arch communicates with the chancel; it has panelled 
octagonal jambs of west-country type, with moulded caps having 
carved pater, the mouldings of the arch—a double ogee and cavetto 
—die out on to the splay of the jambs. The wall between the 
two chapels (the west wall of the former south transept) has been 
removed, but I have no evidence of the time at which this was 
done. The tower stairs lead up from this chapel. The only trace 
of altar accessories is the recess in the south wall, which may have 
been a piscina. 
At about the same time the west walls of the nave and north 
aisle were built in ashlar faced masonry, each gable having a four- 
light pointed window, both being of the same design. A diagonal 
