203 
Roman inhabitants and soldiers of Cambodunum. When 
Camden visited Grimscar, he found there not the remains of 
a brick kiln, but those of a hypocaust, which denote the 
existence of baths, and these involve the necessity of other 
buildings adjoining. 
With regard to the hypocaust discovered at Slack, and 
minutely described by Whitaker,* I am not quite sure 
whether it was the identical one removed from Cambodunum, 
some years since, to the grounds of the late Mr. Allen, of 
Greenhill, near Huddersfield. This hypocaust was said to 
have been a new discovery about thirty years since ; but the one 
alluded to by Whitaker and Watson was exposed to light 80 or 
90 years before. The Remain in the grounds at Greenhill 
is surrounded by trees and protected by an arch of stone. 
It had long been a custom at Slack to dig for fence stones 
among the foundations of the buildings which existed below 
the surface, and it was on one of these occasions that the 
ruins of an erection, composed chiefly of Roman bricks, were 
discovered. These remains consisted of a hypocaust, with 
the floor and portions of the walls of a Caldarium or 
sweating-room. The roof of the hypocaust is composed 
of sandstone flags, measuring 1 foot, 9 inches square, 
and resting on dwarf piers of Roman brick and mortar, 
varying from 6 to 8 inches square. These piers are 
1 foot 9 inches high, and vary from 12 to 14 inches apart. 
The room measured twelve feet long by eleven broad, and 
had been surrounded by vertical hot air tubes, about by 
3 J inches in diameter, composed of baked clay, which 
communicated with the hypocaust below. Many of these 
tubes remain in their original position. The floor of the 
Caldarium is one foot in thickness, and is formed of thick 
tiles about the size of the flags on which they are cemented. 
Upon this floor a layer of mortar and pounded bricks 
* Hist, of Manchester, p. 130. 
