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Walter Holbrook Gaskell
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Stand Alone
![The Involuntary Nervous System [1916 ]](/_next/image?url=https%3A%2F%2Fstorage.googleapis.com%2Fmenrva_img_storage%2Fcovers%2F9781112456053_498b2d32.jpg&w=3840&q=80)
![The Origin of Vertebrates [ 1908 ]](/_next/image?url=https%3A%2F%2Fstorage.googleapis.com%2Fmenrva_img_storage%2Fcovers%2F9781112356193_fbc58da9.jpg&w=3840&q=80)
