A comparative study of the grey and white matter of the motor cell groups, and of the spinal accessory nerve, in the spinal cord of the porpoise ( Phocœna communis )

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Abstract
Recent advances in our knowledge of the arrangement of the motor cells in the anterior cornua of the spinal cord of man have been made almost entirely by the study of the changes produced in these cells by the division or removal of limbs or parts of limbs in the human subject, and very little has, as yet, been done to elucidate this subject by the comparative method of investigation.