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XV. Account of the Irruption of Solway 
Mofs in December 16, 1772 ; in a Let- 
ter from Mr. John Walker, to the Earl 
of Bute, and communicated by his Lord- 
flip to the Royal Society *.* 
My Lord, 
Read Feb. '^11 THEN I was fitting yefterday 
VV writing to your Lordfhip, I re- 
ceived the honour of yours. I fhall therefore defer 
the account I intended of my expedition laft feafon. 
to the north, and give the beft defcription I can, of 
the extraordinary irruption of Solway-mofs, which I 
went to vifit, about a week after it happened. 
It is not furprizing, that it has every where attraded 
the attention of the public ; for though the caufe of it 
is obvious, yet fo far as I recoiled, the alteration it 
has produced on the face of the earth, is greater 
than any we have known in Britain, from natural 
caufes, fince the deftrudion of Earl Goodwin’s eftate. 
* The Society has received, from other hands, feveral accounts 
of this curious and iingular phaenomenon ; but this, as one of the 
lated, being likewife the completed-, was thought the mod proper 
to be laid before the public ; efpecially as, on comparifon, few 
particulars of any importance mentioned in the other accounts 
were found wanting in this. Thefe few, however, have been 
collected, and fubjoined in the form of notes. M. M. 
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