Waldman entered shortly after. This professor
was very unlike his colleague. He appeared about fifty years of age,
but with an aspect expressive of the greatest benevolence; a few grey
hairs covered his temples, but those at the back of his head were
nearly black. His person was short but remarkably erect and his voice
the sweetest I had ever heard. He began his lecture by a
recapitulation of the history of chemistry and the various improvements
made by different men of learning, pronouncing with fervour the names
of the most distinguished discoverers. He then took a cursory view of
the present state of the science and explained many of its elementary
terms. After having made a few preparatory experiments, he concluded
with a panegyric upon modern chemistry, the terms of which I shall
never forget: "The ancient teachers of this science," said he,
"promised impossibilities and performed nothing. The modern masters
promise very little; they know that metals cannot be transmuted and
that the elixir of life is a chimera but these philosophers, whose
hands seem only made to dabble in dirt, and their eyes to pore over the
microscope or crucible, have indeed performed miracles. They penetrate
into the recesses of nature and show how she works in her
hiding-places. They ascend into the heavens; they have discovered how
the blood circulates, and the nature of the air we breathe.
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