72 TATE: THE eo BOULDER COMMITTEE. 
Three typical groups of boulders on the beach of the Holde 
coast, illustrating the Selective and Arranging power of the waves. 
ees 
Sa ene 
g cg 
ae ee 
2.2 . w Gs eee. 
TABLE BB, o“S eSig |) spe 
AMR ee aé%es 
aah | 2568 | ¢F88 
o ri 
BOULDERS ges | 5am | 8.2" 
ovo — . _—" . 
oF SEH | SS" | sews 
© o-° o i * pred > 
OnE Foot anp Upwarps oar £3 g= ¢ at 
(eee 
In DIAMETER “eo sw © 
or) oO 4 
Group J. | Group II. |Group II. 
Carboniferous limestone 
: 12 52 210 | 
Sandstone, Grits, } - 
(Probably x auction f sae 134 9 © 7 
SMS ee gy oa aS ee o I 8 | 
ES Se 4 
sl ied Flint 25 4, ~.,,,|28 large I 3 A 
numbers Ee 
Other Mesozoic rocks a 4 3 a : 
Basalts, etc. ... 2 42 485 — 
Granites, etc. i ees 29 
TOTALS 148 109 778 | 1,035 
TABLE CC. 
Keported by Mr. J. W. STATHER. 
NorTH FERRIBY. 
In the boulder clay cliff on the Humber shore near North 
Ferriby, and on the adjacent beach, 373 boulders noted of 8 i” 
and upwards in diameter, the classification of which yields the | 
following results :-— 
¢ Per cent. 
69 Carboniferous limestones... 18°5 
104 ——— grits, conglomernte etc. fencbibiy Keasky all foi 
ocks 
2 Soto, etc., probably neatly all of Ssiie Age RE es 
Pip 
10 oll {intaaing 2 Vik flints) Bee a a 
88 d other eruptive rocks = woo a ee 
32 needs sry pies He as Co ee 
= = 
