236 LAMPLUGII : LARGER BOULDERS OF FLAMBOROUGH HEAD. 
Lest it should be thought that I have euterecl upon these 
geueiahzations at too early a stage of the investigation, and without 
sufficient basis, I may add that a preliminary survey of the boulders 
which will go to form my future lists, especially of the very large 
number which lie upon the shore a little to the southward of the 
Lighthouse, has shown me that I shall not find any radical or im- 
portant change in the nature of the rocks yet to be collated. 
In the appendix will be found detailed notes of those boulders 
which merit especial attention because of their composition or their 
large size. The less important ones it is unnecessary to particularize. 
It must be remembered however that as my knowledge of igneous 
rocks is very imperfect, the terms I have used in describing such 
rocks are to be received with caution. 
Appendix to Part II. 
THE MORE IMP0RTA2JT BOULDERS IN DANES DYKE VALLEY. 
The prefixed number indicates the ordinal position of the boulder 
in the original full list. The sign + placed after a measurement 
shows that it has been impossible to determine the full size of the 
block. All dimensions in inches. 
No. 
10. Position : In the stream-bed above the lowest bend. Descrip- 
tion : Light-coloured close-grained gritty limestone with in- 
determinable fossils. Age: Probably Carboniferous. Size 
and shape : Irregular cube. 26 x 19 x 13 inches. 
14. A few yards above 10, in the stream bed : Brecciated limestone 
with encrinites, much weathered. Carboniferous. Irregular 
cube. 40 X 34" x 25 inches. 
22. In the stream-bed above 14. Limestone with encrinites. Car- 
boniferous. Rude rhomb. 34 x 19 x 12. 
46. Twenty yards below the bridge. Mica-schist with quartz. 
13 X 12 X 6. 
47. Near 46. Coarsely-crystalline red granite {not Sliap.) 
12 X 10 X 9 +. 
52. In the stream-bed above the bridge. Dark fine-grained Basalt. 
Flat glaciated surface alone visible. 24 x, 19 + 
