110 
TRANSACTIONS OF THE PLYMOUTH INSTITUTION. 
regret that the mould stone in the lower house has been broken 
since Mr. Kelly's visit, and that only one of the two moulds in 
the same stone is now intact. 
I have made a careful examination of the present condition of 
these ruins with the following result : The lower house, on the 
eastern side of the stream, is a mere heap of stones, with portions 
only of the original structure standing. This building must have 
been about twenty-five to twenty-six feet long, and sixteen to 
seventeen feet wide. 
The entrance, facing the north, is fairly perfect, with a doorpost 
of unhewn moorstone six feet high. This entrance is higher than 
those of Week Ford or Har Tor. No wheel-pit is visible, but 
there are traces of a watercourse at a high level to the north-east 
of the ruin. Near the entrance is a stone with one perfect mould 
and another imperfect. This is the stone which has been broken 
since Mr. Kelly's visit, somewhere about twenty-two years since. 
Originally it was four feet three inches long, two feet six inches 
wide, and about fifteen inches deep. 
The perfect mould is seventeen inches long at the top, eleven 
inches wide, and eight inches deep. It is bevelled, so that at the 
bottom of the mould the length is twelve inches, and from six 
to seven inches wide. The length of this mould runs parallel 
with the length of the stone ; whilst at right angles to it, and 
running the width of the stone, is the broken mould, which was 
originally of the same dimensions as the other. 
Another mould stone lying near an angle in the eastern wall 
of the house either escaped the notice of Mr. Kelly, or else 
was not visible at the time of his visits. It is very curious, 
and differs from any I have yet seen. The stone is three feet 
six inches long and three feet wide ; the depth not ascertained, as 
it is buried up in debris. It has two moulds adjoining each other 
—one at a lower level than the other, and connected by a channel. 
The high-level cavity is fifteen inches long, eight inches wide, 
and three inches deep. At one end is a groove an inch deep, 
perpendicular, and running down the side of the mould three 
inches ; that is, from top to bottom. 
The low-level mould is seventeen inches long, twelve inches 
wide, and five inches deep. These cavities may have been used 
for the purification of the tin, for molten metal mixed with 
furnace impurities poured in on the high-level hollow would 
