Source: Snow J. On Continuous
Molecular Changes, More Particular
in Their Relation to Epidemic Diseases,
London, 1853. in Snow J. Snow on
Cholera being a Reprint of Two Papers
with A Biographical memoir by B. W.
Richardson and An Introduction by
Wade Hampton Frost. Hafner
Publishing Co., London, 1965
(facsimile of 1936 edition).
17 Oct 2006