differently managed. There, lands that grow rice crops which
always require tank or river irrigation are separately assessed
at special rates; and, for Revenue purposes, all cultivation is
broadly classified as ' wet ' and ' dry/

Irrigation by Wells. Means of raising water. — Wells give
rise to many customs of land-holding in Northern India \ As
each well can only be worked a certain number of hours, and
the flow during that time will water a certain number of acres
(more or less according to situation, nature of soil, requirement
of crop, &c.) the sharers in a well arrange ' turns '—each work-
ing it so many hours each day, or on certain days in the week.
In the Central Panjdb water is raised from the well by the
( Persian wheel,' which is an apparatus of earthern pots fastened
on an endless band of grass rope which passes over a great
wheel turned by cattle. This is local. Elsewhere a large
leather bag furnished with an iron rim and hung by a stout rope
over a pulley-wheel, is drawn up and down by cattle moving on
a roadway sloping up from the well's mouth (Ido-charsd). Or
a lever-pole weighted at one end and furnished at the other with
a bucket or earthern pot, is used (dhehkti). Small wheels (rdoff,
jhaldr) are often erected on the edges of rivers and creeks and
on low level canals where the water requires raising.
