Results of deep dredging off the Mull of Galloway. 21 



VI. — Results of deep dredging off the Mull of Galloway, by Capt. Beechey, 

 R.N. Drawn up by Wm. Thompson, Esq., Vice-Pres. Nat. Hist. Society 

 of Belfast. 



Captain Beechey, the distinguished navigator, having in the month of 

 April last been engaged in a survey of part of the Scottish coast in H.M. 

 steam-vessel Lucifer, most kindly undertook to use the dredge in the deepest 

 water in which his soundings might be made, and the following are the highly 

 interesting results obtained on three occasions ; the products from the dif- 

 ferent depths being most carefully kept separate. 



* A remarkable dyke, beginning about 5 miles S.W. the Mull of Galloway, and extending 

 northward nearly to Corsewall. It is from a mile to a mile and a quarter wide. Its average 

 depth in the centre is 130 fathoms. 



