Light Science for Leisure Hours: A series of familiar essays on scientific subjects, natural phenomena, &c.Proctor, Richard A. (Richard Anthony)
Science
Light Science for Leisure Hours: A series of familiar essays on scientific subjects, natural phenomena, &c.
Proctor, Richard A. (Richard Anthony)
Science
The earthquake which took place at Cutch in 1819 is perhaps in
some respects yet more remarkable. In this instance, phenomena of
subsidence, as well as phenomena of upheaval, were witnessed. The
estuary of the Indus, which had long been closed to navigation—being,
in fact, only a foot deep at ebb-tide, and never more than six feet at
flood—was deepened in parts to more than eighteen feet at low water.
The fort and village of Sindree were submerged, only the tops of houses
and walls being visible above the water. But although this earthquake
seemed thus to have a land-destroying, instead of a land-creating
effect, yet the instances of upheaval were, even in this case, far more
remarkable than those of depression. ‘Immediately after the shock,’
says Sir Charles Lyell, ‘the inhabitants of Sindree saw at a distance
of five miles and a half from their village a long elevated mound,
where previously there had been a low and perfectly level plain. To
this uplifted tract they gave the name of Ulla-Bund, or the “Mound of
God,” to distinguish it from several artificial dams previously thrown
across the eastern arm of the Indus. It has been ascertained,’ he adds,
‘that this new-raised country is upwards of fifty miles in length from
east to west, running parallel to the line of subsidence which caused
the grounds around Sindree to be flooded. The breadth of the elevation
is conjectured to be in some parts sixteen miles, and its greatest
ascertained height above the original level of the delta is ten feet—an
elevation which appears to the eye to be very uniform throughout.‘
(From _Chambers’s Journal_, November 7, 1868.)
_THE FORCING POWER OF RAIN._
There is an old proverb which implies that England need never fear
drought; and we have had clear evidence this year (1868) that an
exceptionally dry summer is not necessarily followed by a bad harvest.
But I believe that when a balance is carefully struck between the good
and the evil effects resulting from excessive drought in England, it
will be found that the latter largely prevail. In fact, it is only
necessary to observe the effects which have followed the recent wet
weather to recognise the fact that rain has a forcing power, the
very diminished supply of which at the due season cannot fail to
have seriously injurious effects. In various parts of England we see
evidences of the action of such a power during the present autumn in
the blossoming of trees, in the flowering of primroses and other spring
plants, in rich growths of fungi, and in various other ways. It cannot
be doubted that there is here a comparative waste of powers which,
expended in due season, would have produced valuable results.
Public-domain text, read in full here on John Shaqi.
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