204 
has been run, when in a liquid state, to about the thick- 
ness of four inches. The floor thus formed, where it is 
perfect, which is the case at both ends of the apartment, is 
coarse and uneven, possessing no marks of ever having been 
covered with a tesselated or mosaic pavement. Nor do the 
wall flues appear ever to have been finished with stucco. 
This hypocaust has either belonged to one of the commonest 
kind of thermal edifice, or was in an unfinished state at the 
time of its destruction. At the south west and north east 
angles of the remain, and on a level with the floor, are two 
large fragments of sandstone grit, which appear, from their 
peculiar form, to have been portions of the baths adjoining 
the hypocaust. However this may be, one of these fragments 
is furnished with a channel to carry off an overflow of water 
from the bath or cistern, of which it formed part. 
On the discovery of this remain, the subsequent excava- 
tions were conducted under the personal superintendence of 
Mr. Allen, who was accompanied by a practical engineer ; but 
the injury done to the fences and land, by the immense con- 
course of people, who collected from every quarter, soon put 
an end to all further operations. Much, however, remains to be 
done ; and I feel persuaded that if a systematic exploration of 
the Eald Fields were made, important results would follow. 
My account of the earthworks and tumuli, which surround 
the station at Slack, would extend my paper beyond all 
reasonable bounds were I to introduce it on the present 
occasion. I have been induced to devote more attention to 
this part of my subject than I should otherwise have 
done, had not the obsolete claim of Greetland, to the site of 
Cambodunum, been revived by the late Mr. Hunter, in the 
communication to the Society of Antiquaries, to which I 
have previously alluded. Greetland, in the presence of 
Slack, I beg to submit, can have no such pretension ; and 
we can only suppose that the amiable heart of Hunter, filled 
