The Parochial History of Cornwall, Volume 4 (of 4)
History
The Parochial History of Cornwall, Volume 4 (of 4)
Cornwall (England : County) -- History; Geology -- England -- Cornwall (County)
According to an analysis made by the Rev. William Gregor, a
good specimen of this stone consists of about nine parts in
ten of carbonate of lime.
Mr. Trist then gives a comparative statement of the results from
calcining this limestone, and the well-known limestone of Plymouth,
that 200 Winchester bushels of lime from the kiln, provincially called
shells or foreright lime, are produced from 11 tons of the Veryan
limestone, by the consumption of 46 Winchester bushels of culm, more
universally known as Welsh stone coal; but that 14½ tons are required
of the Plymouth limestone to give the same quantity of lime from the
kiln, with the consumption of 56 bushels of culm, which would make the
Plymouth limestone inferior to that of Veryan, in about 32 per cent.
as to quality, and about 22 per cent. more in regard to fuel. As a
cement, its quality is remarkably good. Small spherical masses of
oxide of iron occur in great abundance; they are, in the opinion of
Mr. Gregor, pyrites in a state of decomposition, the sulphur having
escaped.
The colour of the rock is blue, and it is frequently traversed by
veins of calcareous spar.
In the schist which immediately reposes on the limestone, mica appears
in considerable abundance, and the whole is strongly impregnated with
lime. It is of a soft crumbling nature, decomposing on exposure to the
atmosphere, and in that state it is much esteemed as a manure.
The floor on which the lime rests (probably the whole alternating
formation) is an argillaceous schist, with veins of manganese, which
have been partially wrought.
* * * * *
Mr. Greenough has laid down on his map a broad line extending about E.
N. E. from Gerrans and Veryan, crossing St. Blasey Bay and ending near
Looe, with the inscription, “calcareous matter along this line”.
WARBSTOW.
HALS.
Warbstow vicarage is in the hundred of Lesnewith, and hath upon the
north Jacobstow, east Tremayne, south Trenegles, west Davidstow.
In the Domesday Book this district was taxed under the name and
jurisdiction of Treveliad, now Trevelian.
This church was not endowed at the time of the first inquisition of
the Bishops of Lincoln and Winchester, 1294, and therefore not named
therein. It now goes in consolidation and presentation with Trenegles,
and is also taxed together with it. The patronage in the Duke of
Cornwall; the incumbent Wood; the rectory in possession of ――――.
TONKIN AND WHITAKER.
Warbstow, in the hundred of Lesnewith, hath to the west Otterham, to
the north Jacobstow, to the east part of Devonshire and Tremain, to
the south Davidstow and Trenegles.
Public-domain text, read in full here on John Shaqi.
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