Hygiene of the brain and nerves and the cure of nervousness : with twenty-eight original letters from leading thinkers and writers concerning their physical and intellectual habits / by M. L. Holbrook.

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Hygiene of the brain and nerves and the cure of nervousness : with twenty-eight original letters from leading thinkers and writers concerning their physical and intellectual habits / by M. L. Holbrook. Credit: Wellcome Collection. Public Domain Mark