AUTOGENY, AUTOGENOUS (Gr. αὐτογενής),
spontaneous generation, self-produced. Haeckel distinguished
autogeny and plasmogeny, applying the former term when the
formative fluid in which the first living matter was supposed to arise
was inorganic and the latter when it was organic, i.e. contained
the requisite fundamental substances dissolved in the form of complicated
and fluid combinations of carbon. In "autogenous soldering" two pieces of
metal are united by the melting of the opposing surfaces, without the use
of a separate fusible alloy or solder as a cementing material.
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