Microscopy
There were no suitable means of magnifying invisible organisms prior to the
17th century. We have already seen how Anton
van
Leeuwenhoek is honored for providing the first accurate report of the occurrence of bacteria with the help of his single-lens microscopes of simplest possible design.
He
could
make
lenses
and
using
them
to
build
magnifying
glasses
to
provide
a
magnification
of
about
200
times.
It
is
true
that
Robert
Hooke
had
used
a
compound
microscope
in
18th
century,
but
these
were
incapable
of
good
performance,
due
to
defects
such
as
chromatic
and
spherical
aberration
inherent
in
their
basic
design.
Index >> Microbiological Methods >> Microscopy
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