Woop-Martin—On a Crannog Site in Co. Meath. 481 
which he observed still remaining in clamps on the banks: it was of 
that dense black peat found occasionally at the bottom of bogs, hard 
and heavy as coal (a tooth of an ox was embedded in one sod); for 
though it had been exposed to the winter frost and rain it was per- 
N 
Fig. 1. 
Sketch Map of the ‘‘ Island” adjoining the townland of Coolnahinch, by C. B. Jones, c.s., 
M.R.H.A.A.1.—A-B, 22 paces; C-D, 17 paces; E, E, Fences; F, F, F, F, F, Bog- 
holes ; G, G, G, G, G, G, Heaps of Stones ; H, H, Rows of Stakes; J, J, J, where 
Carbonized Vegetable Remains were excavated ; K, probably Site of Refuse Mass. 
fectly unaffected by them. The inference seems plain—that the 
crannog was erected when the growth of peat, which finally filled up the 
lake bed, had already been some time in process of formation; that the 
layer underlying the crannog had been artificially compressed by the 
