Mr D. Milne on Earthquake- Shocks in Great Britain, 259 



and if the figure in the seventh volume of the Naturalist's Li- 

 brary be correct, it cannot be considered as representing the 

 present species, as the ear is of a different form, although the 

 tragus is somewhat similar. 



13 Chanonry, Old Aberdeen, 

 UthAtujHst 1041. 



Notices of Earthquake-Shocks in Great Britain, and especially 

 in Scotland, with Inferences suggested by these Notices as to 

 the Nature and Causes of such Shocks. By David Milne, 

 Esq., F.R.S E., M.W.S., F.G.S., &c. Communicated by the 

 Author. (Continued from page 122.) 



In the enumeration of Earthquake-shocks given in the pre- 

 ceding part of this Memoir, no jiotice has been taken of those 

 which occurred subsequent to September 1839- After that 

 date, a series of shocks commenced in Scotland, which followed 

 in such quick succession, and were attended with such strik- 

 ing effects, that they seem entitled to be considered apart from 

 those occasional shocks that compose the Register given in the 

 preceding part. It may also be proper to explain, that one 

 reason why in that Register no notices have been given of 

 shocks which occurred in Great Britain previous to the six- 

 teenth century, is the difficulty of determining whether the 

 phenomena, which are by ancient authors termed earthquakes, 

 really can be considered such. In many instances it is plain 

 that they were mere land-slips, which produced a noise and 

 a concussion, that led to the belief of an earthquake ; and in 

 other instances, the description is quite ambiguous. By com- 

 paring the accounts given by different historians, the truth, 

 where now obscUre, might probably be arrived at ; — and at 

 some future time, the author may, perhaps, undertake this exa- 

 mination. Such an examination has lately been instituted by 

 Professor Merian of Basle, of the earthquake-shocks which have 

 occurred there ; and he has already eliminated 118 well-au- 

 thenticated earthquakes, as having occurred between the 

 eleventh and eighteenth centuries inclusive. Mr Alexis Per- 

 rey, of Dijon, is composing a similar catalogue, which com- . 



