KIRCHOFF, a Prussian chemist, is reported to have discovered a process by
which milk may be preserved for an indefinite period. Fresh milk is
evaporated by a very gentle heat till it is reduced to a dry powder, which
is to be kept perfectly dry in a bottle. When required for use it need
only be diluted with a sufficient quantity of water. Mr. James Jones, who
keeps a red cow--over his door--claims the original idea of making milk
from a white powder, which, he states, may be done without the tedious
process of evaporation, by using an article entirely known to London
milk-vendors--namely _chalk_.
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