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Author's own clinical experience—Volumetric Analysis of the
urine in cerebral disease. Aphasia of the ataxic form, occurr-
of the brain possessed by the ancients. Gall; the value of his
researches; the cerebral localisation of our divers faculties
Physiology-Ligature of the common carotid, its effect upon
speech. Aphasia with left-hemiplegia in left-handed people ;
convolutions of the left hemisphere denied by Carl Vogt.
A PH ASIA,
Loss of Speech,
THE LOCALISATION OF THE FACULTY OF ARTICULATE LANGUAGE.
APHASIA is the term which has recently been given to the loss of the faculty of articulate language, the organs of phonation and of articulation, as well as the intelligence, being unimpaired. The pathology of this affection is at the present time the subject of much discussion in the scientific world; the French Academy devoted several of their séances during the year 1865 to its special elucidation, and the Medical Journals of France and of our own country have lately contained a good deal of original matter bearing upon this obscure feature in cerebral pathology.
In a short paper published in the “Lancet" for May 20, 1865, I drew attention to the existing state of our knowledge of the pathology of aphasia ; since that period I have had occasion to make researches among various British and foreign authors, and having