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At the fortieth annual meeting of the American Neurological Association, held in May, 1914, a paper was presented, entitled "Observations on Epilepsy Chiefly from an X-Ray Standpoint," by Drs. T. M. T. McKennan, George C. Johnston and C. H. Henninger. In that paper it was shown that there were apparently deposits of bone in the base of the skull in a large percentage of epileptics. An endeavor was made to show the way in which this deposit occurred and that, together with this deposit, there was probably a crippling of the pituitary gland. To make this clear I quote:
The interpretation of the changes found at the base of the skull in the essential epilepsies at first seemed to us to be very difficult. Our first idea was that it had an inflammatory origin. This we were forced to abandon for the reason that we could find no cause of