687 [=48] (V.2)

[*note: a piece of papper has been placed so as to block out some lines of text. Those lines have been replaced by lines written in the margin. The replacament lines are indicated below]

687

occupying the open spaces between
the angular masses, checks and
ultimately stops the passage of

[here a piece of paper covers some lines, replacament lines in margin follow:

water, and that the only remedy
is a periodical relief by either
clearing or reversing the frag-
-ments: an operation in the case
of land drainage I should imagine
leading to great trouble and expense
but in that of]

[with, struck through] the Rutmoo Revetments
of comparatively minor im-
-portance from the modified
form in which it has been prac-
-tised.

In laying out the line
of drain underneath the bridge
or that part of it which lies be-
-tween A2 and A3 it was found
necessary to deviate from the direct
alignment on which it was
originally designed; the change
from a direct to a tortuous course
is by no means an improvement
either to the free passage of the
water, or to facilitating clearance
from silt.

In conclusion I may observe
that judging from the perpetual
discharge of water from the escape
opening at A4, and the constant
gurgling of running water as
heard throguh the man holes,
on the whole length of the re-
-vetments to which the chan-
-nel is attached, the drain is
acting very efficiently.

B. This includes the dam
proper, or the work for relieving
the canal channel during the
rains from the torrent, which gains
admission