d with holes, rather large bored, at the angles of
every square inch of its surface; your fake bottom being laid, provide
two pieces of clean thick blanketing the full size of the vessel, lay
these pieces one over the other, over them a stratum six inches deep,
of rather coarsely pounded charcoal; this should be previously wetted
with some of the beer or ale, till brought to the consistence of coarse
mortar; over this lay another stratum of fine clean pit sand, and so
on, stratum super stratum, of sand and charcoal, till you have reached
within six inches of the top; the cover of this vessel, which is also
perforated with holes somewhat smaller than those of the bottom, is let
down in the vessel to within one inch of the filtering medium, and in
that position is well secured by buttons, or otherwise. When you filter
by descent, you run your liquor over this cover, which, by means of the
holes, will be distributed evenly over the upper surface of the filter;
and so you continue running on your liquor as fast as you see the
operation will take it.

When you wish to filter by ascent, you introduce the liquor to be
filtered between the two bottoms. As the fountain which supplies this
liquor is higher than the filtering vessel, it will naturally force its
way through the false bottom, filtering medium, &c., until it runs off
pure at spout F into the receiver G. Those persons who live on the
banks, or in the vicinity of our great rivers, such as the Missouri,
Ohio, Mississippi, &c., may purify their drinking water in this way,
with great advantage to their health, and consequent increase of
comfort to themselves and families. It is also well adapted to the use
of those who navigate these waters, particularly such as proceed in
steam-boats, where convenient room can be always found for such useful
and salutary purposes, and to them I strongly recommend its use. It may
also be advantageously applied to filtering rain water, which, to some
constitutions, may be more congenial than either spring or river water.

_Returned Beer, to make the most of, and double its value._

Suppose, for example, you have one hundred and fifty barrels of this
beer, (or in that proportion, adjust your mixing ingredients
accordingly,) put the whole into one vat that it will fill; then take
half a barrel of colouring, twenty-eight pounds cream of tartar,
twenty-eight pounds of ground alum, one pound of salt of steel,
otherwise called green co