169 



NOTES ON THE GEOLOGICAL FORMATION AND 

 FOSSILS OF THE SILLOTH NEW DOCK. 



By J. LEITCH, M.B., CM. 

 (Rtad at Silloth. ) 



The excavations for the above undertaking being almost finished, 

 a complete account of the formations that were passed through, 

 and of the organic remains that were met with, may now (November 

 1884) be given. 



Some of the latter have already become historical, and indeed 

 nothing of interest has been found for more than a year. But, in 

 order that a perfect list might be made, and in the hope that, up 

 to the last, some fresh treasure might be found, I have deferred 

 writing these notes until now. 



The paper may be divided into two parts : — 



I St. The Geological Formation. 

 2nd. The Organic Remains. 



1st. Geological Formation. — The average depth of the dock, 

 from the original surface to the floor, is thirty feet; and, as no 

 rocky strata were met with, the work of excavation proceeded 

 rapidly. At the entrance, however, where the foundations of the 

 most important structures are laid, a depth of over forty feet had 

 to be reached ; but for those of the side walls, a depth of several 

 feet less sufficed. 



