Releases by G. H. Parker

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Cover for G. H. Parker · Humoral Agents in Nervous Activity: With Special Reference to Chromatophores (Paperback Book) (2015)

Humoral Agents in Nervous Activi... (2015)

Cover for G. H. Parker · Color Changes of Animals in Relation to Nervous Activity (Hardcover Book) (1936)

Color Changes of Animals in Rela... (1936)