238 LAMPLUGH: LARGER BOULDERS OF FLAMBOROUGH HEAD. 
15. Near the cliff, slightly westward of Harteii dale Gutter. Peculiar 
fine-grained soft slaty-green claystone (?) with small crystals 
of pyrites, interlaced with quartz-veins. Primary, probably 
Silurian. Rude oval. 36 x 34 x 24 + . 
17. Beyond Hartendale. Soft reddish sandstone with fossils. 
Carboniferous. 15 x 13 x 9. 
Note. — I was inclined to regard this block as oolitic, till by 
breiiking it I found casts of Hplrifera and encrinital stems. 
This has happened to me so often in examining these sand- 
stones (which are frequently calciferous) that I have come 
to look upon the whole as Carboniferous. 
19. Between Hartendale and Beacon Hill, close to cliff. Peculiar 
pale-red speckled calciferous sedimentary rock, with appear- 
ances like fossils. Silurian? Rhomboidal. 20 x 17 x 12 +. 
28. Under west side of Beacon Hill, eight yards from the cliff. A 
grand pear-shaped mass of grey granite, coarsely but con- 
fusedly crystalline. Well-rounded. 64 inches x 40 x 24. 
41. Beyond Beacon Hill, rather above half- tide level. Pinkish 
gritty limestone with fossils. Carboniferous. Rude spheroid. 
52 x 40 X 36. 
42. Near 41. Dark coarsely-crystalline Basaltic rock (Diorite ?) 
Irregular spheroid. 24 x 19 x 17. 
44. Near 41. Greenish gneiss with quartz-veins. Oval ; worn. 
40 X 25 X 20. 
47. Near West Nook. Hard close-grained bedded crystalline rock 
(quartzite T) Rhomboidal. 31 x 24 x 22 + . 
51. (Starting afresh from Danes Dyke at low-water). Below half- 
tide near Danes Dyke. Dark quartzite ? Rudely-oval. 
50 X 36 X 30. 
56. Below half-tide, just beyond Hartendale. Close-grained black 
Basalt. Oblong. 54 x 30 x 33. 
61. At half-tide, opposite Beacon Hill. Coarse-grained greenish- 
black Basaltic rock (Diorite ?) with glassy crystals. Rect- 
angular, with flat sides. 36 x 33 x 23. 
70. At low-water off West Nook. Greenish amygdaloidal Basalt. 
Flattened disc. 26 x 24 x 11. 
