Then he began to
experiment, with some rude apparatus of his own contrivance. The
curious results of his first experiments led to others, which in
his hands shortly became the science of pneumatic chemistry. About
the same time, Scheele was obscurely working in the same direction
in a remote Swedish village; and he discovered several new gases,
with no more effective apparatus at his command than a few
apothecaries' phials and pigs' bladders.
Sir Humphry Davy, when an apothecary's apprentice, performed his
first experiments with instruments of the rudest description. He
extemporised the greater part of them himself, out of the motley
materials which chance threw in his way,--the pots and pans of the
kitchen, and the phials and vessels of his master's surgery. It
happened that a French ship was wrecked off the Land's End, and the
surgeon escaped, bearing with him his case of instruments, amongst
which was an old-fashioned glyster apparatus; this article he
presented to Davy, with whom he had become acquainted. The
apothecary's apprentice received it with great exultation, and
forthwith employed it as a part of a pneumatic apparatus which he
contrived, afterwards using it to perform the duties of an air-pump
in one of his experiments on the nature and sources of heat.
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