Giles's Group_--(which is the lowest of all the others, and is found
only in the great London basin)--and that portion of the Whitechapel group
whose individuals wear Bluchers and ride in pleasure 'wans' to Richmond on
Sundays. In man's economy the _St. Giles's Group_ are exceedingly
important, being usually employed in the erection of buildings, where
their great durability and hod-bearing qualities are conspicuous. Next in
order is the Metamorphic class--so called, because of the singular
metamorphoses that once a week takes place amongst its individuals; their
common every-day appearance, which approaches nearly to that of the _St.
Giles's Group_, being changed, on Sundays, to a variegated-coloured
surface, with bright buttons and a shining "four-and-nine"--goss. This
class includes the upper portion of the _Whitechapel Group_, and the two
lower strata of the _Clapham Group_. The _Whitechapel Group_ is the most
elevated layer of the inferior series. The Shabby Genteel stratum occupies
a wide extent on the Surrey side of the water--it is part of the _Clapham
Group_, and is found in large quantities in the neighbourhood of
Kennington, Vauxhall, and the Old Kent-road. A large vein of it is also to
be met with at Mile-end and Chelsea. It is the lowest of the secondary
formation.
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