Microscopy UK (Web Home of Microscopy for
third column of this link-rich site is of most interest: Introductions to
Microscopy, School Biology, What's a Cell?, and others.
Brian J. Ford's Discovery of Leeuwenhoek's Original
Ford discovered actual samples prepared by van Leeuwenhoek, which had been
hidden amongst other materials in the Royal Society's archives for several
centuries. Now, for the first time, we are able - using one of the few
existing original van Leeuwenhoek microscopes and his own prepared samples
- to see precisely what van Leeuwenhoek saw.
Biogenesis and Abiogenesis (1870)http://aleph0.clarku.edu/huxley/CE8/B-Ab.html
Huxley's disquisition on the hypothesis of biogenesis, the arising of life
from other living matter, and that of abiogenesis, the production of life
from dead matter.
Chapters 1 and 2