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III.—Wotes on the similarity of some of the Cornish rock-names and 
miners terms, to Irish words—By G. HENRY KINAHAN, 
M.R.LA., &e. 
Communicated to the Spring Meeting, May 18, 1872, by WiuutaAm Jory 
Henwoop, F.R.S., F.G.8., Vice-President of the Institution. 
oe examining the rocks in various parts of Ireland it was 
observed that the Irish-speaking people understood many of 
the Cornish miners’ terms and names, although their pronunciation 
of them was somewhat different. This opinion was confirmed and 
strengthened by reading a late publication entitled “ Metalliferous 
Deposits and Subterranean Temperature,” by W. J. Henwood, 
F.R.S., &¢., &¢. ; in which the similarity of the Cornish and Irish 
words was strikingly apparent. In consequence of this, and after a 
correspondence with the learned author of that work, I am em- 
boldened to lay before the society the following Paper. I must, 
however, premise that my knowledge of the Irish is very limited, 
and that I would not presume on my own authority to attempt a 
comparison of the words in the different dialects of Cornish and 
Trish, were it not for the assistance which has been afforded 
me by my friend, the Rev. W. Kilbride, A.B., Vicar of Aran, 
Galway ; who has long studied the latter. 
Irish words, when adopted into or pronounced in English, 
have been greatly altered, and in many ways corrupted; the 
transformation, in some cases, being so great that the words are 
scarcely recognizable. These corruptions and extraordinary changes 
are to be met with in a variety of cases, which need not now 
be mentioned, as those wishing for further information may be 
referred to that interesting work: “Irish Names of Places,” by 
P. W. Joyce, LL.D., M.R.LA., &e. 
It must also be remembered, in an investigation of this kind, 
that many Cornish and Irish names and terms are chiefly derived 
from traditional pronunciation ; also, that local technical terms are 
often difficult to deal with-and obscure in their derivations, for 
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