Earthquake at Hafodunos near Denbigh. 333 
afeertained my time by equal altitudes, taken with one of Mr. 
bird’s agronomical quadrants of one foot radius. As every 
phenomenon of this kind is interefting, you may, perhaps, 
wilh to communicate this account to the Royal Society ; which 
you are welcome to do, if you think it worth the attention of 
fo illuflrious a body. 
1 have the honour to be, &c. 
Vol. LXXL Y y 
