The vessel which is intended to contain the
water, which is generally an earthen chatty, is well rubbed in
the inside with a berry until the latter, which is of a horny
consistency, like vegetable ivory, is completely worn away. The
chatty is then filled with the muddy water, and allowed to stand
for about an hour or more, until all the impurities have
precipitated to the bottom and the water remains clear.
I have constantly used this berry, but I certainly cannot say
that the water has ever been rendered perfectly clear; it has
been vastly improved, and what was totally undrinkable before has
been rendered fit for use; but it has at the best been only
comparatively good; and although the berry has produced a decided
effect, the native accounts of its properties are greatly
exaggerated.
During the prolonged droughts, many rivers of considerable
magnitude are completely exhausted, and nothing remains but a dry
bed of said between lofty banks. At these seasons the elephants,
being hard pressed for water, make use of their wonderful
instinct by digging holes in the dry sand of the river's bed;
this they perform with the horny toes of their fore feet, and
frequently work to a depth of three feet before they discover the
liquid treasure beneath.