ioo Lincolnshire Notes & Queries. 



In addition to the great moraine just mentioned there is a 

 smaller, though none the less interesting one, a few miles to 

 the west of this large one. This moraine (for such it is) 

 crossed the Humber at North and South Ferriby, the Boulder 

 Clay cliffs on either side of that estuary being all that is left of 

 a bank of glacier debris that once existed right across the 

 river, which would no doubt at some time interfere with its 

 drainage. It was in this moraine, at a depth of eighteen feet, 

 that the pebble of Shap Granite referred to at the beginning of 

 this paper was obtained. 



It should here be remarked that whilst c boulder-searching ' 

 during the past summer I found a piece of chalk thoroughly 

 embedded in the chalky rubble on which the bank of boulder 

 clay rests at South Ferriby, which was beautifully ice-scratched, 

 the striations thereon indicating that, if striated in its present 

 position, the ice which made them came from a north-easterly 

 direction. 



The foregoing remarks may perhaps appear to be a rather 

 roundabout way of explaining the transportation of the 

 boulders in East Yorkshire and Lincolnshire, but it must be 

 borne in mind that were it not for the fact that the Irish Sea 

 was rilled with ice to overflowing, thus causing the Lake 

 District ice to find its way into the North Sea, to be after- 

 wards dragged down by the Norwegian ice-sheet, we should not 

 have had the pleasure of finding Shap Granite in Lincolnshire ! 



The whole subject is so full of interest that one could say 

 much more, but I feel I have already trespassed too much on 

 valuable space. However, I have endeavoured to show that 

 simply recording 'erratics' is not uninteresting, and it is such 

 facts as these that we must have in order to solve the com- 

 plex glacial problems that are occupying the attention of so 

 many of the geologists of to-day. No matter what theory may 

 be advanced in order to explain the presence of these boulders, 

 the records of the boulders themselves must be first taken into 

 consideration. 



In conclusion, I sincerely hope that an earnest effort will be 

 made, by all who are able, to help the Lincolnshire Boulder 

 Committee in their work. The Yorkshire Boulder Committee 

 has now been in existence some ten years, and has each 

 year printed most valuable reports, though the county is far 

 from being c worked out ' yet. 



The ' East Riding ' Boulder Committee, which report to 

 the Yorkshire Boulder Committee, has divided the area under 



