Most of the various pastes on the market serve very well the needs
of these problems. A far less expensive and quite as satisfactory
a paste may be made from wheat or rice flour provided one has the
simplest facilities for boiling. Take two tablespoonfuls of flour and
wet with warm water. Over this pour one pint of boiling water and boil
three minutes. ½ teaspoonful of powdered alum added to this will keep
it sweet for some time. If an extra strong paste is desired a small
quantity of glue may be added to the paste while it is still hot. If
solid glue is used this should first be dissolved in hot water.