The process or technique of creating chemitypes, involving the chemical treatment of surfaces to produce photographic images.
From 'chemitype' + '-y' suffix (indicating a process or field of study). This variant spelling reflects older photographic terminology from the late 1800s.
This alternate spelling of chemitypography shows how technical terminology was still unstable in photography's early days—inventors and photographers hadn't yet standardized what to call their experimental processes.
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