Mr. Specter.

This laceration was parasagittal. It was situated approximately 2.5 cm. to the right of the midline, and extended from the tip of occipital lobe, which is the posterior portion of the brain, to the tip of the frontal lobe which is the most anterior portion of the brain, and it extended from the top down to the substance of the brain a distance of approximately 5 or 6 cm.
The base of the laceration was situated approximately 4.5 cm. below the vertex in the white matter. By the vertex we mean--the highest point on the skull is referred to as the vertex.
The area in which the greatest loss of brain substance was particularly in the parietal lobe, which is the major portion of the right cerebral hemisphere.
The margins of this laceration at all points were jagged and irregular, with additional lacerations extending in varying directions and for varying distances from the main laceration.
In addition, there was a laceration of the corpus callosum which is a body of fibers which connects the two hemispheres of the brain to each other, which extended from the posterior to the anterior portion of this structure, that is the corpus callosum. Exposed in this laceration were portions of the ventricular system in which the spinal fluid normally is disposed within the brain.

When viewed from above the left cerebral hemisphere was intact. There was engorgement of blood vessels in the meninges covering the brain. We note that the gyri and sulci, which are the convolutions of the brain over the left hemisphere were of normal size and distribution.
Those on the right were too fragmented and distorted for satisfactory description.
When the brain was turned over and viewed from its basular or inferior aspect, there was found a longitudinal laceration of the mid-brain through the floor of the third ventricle, just behind the optic chiasma and the mammillary bodies.
This laceration partially communicates with an oblique 1.5 cm. tear through the left cerebral peduncle. This is a portion of the brain which connects the higher centers of the brain with the spinal cord which is more concerned with reflex actions.
There were irregular superficial lacerations over the basular or inferior aspects of the left temporal and frontal lobes. We interpret that these later contusions were brought about when the disruptive force of the injury pushed that portion of the brain against the relative intact skull.
This has been described as contre-coup injury in that location.
This, then, I believe, Mr. Specter, are the major points with regard to the President's head wound.

Mr. Specter.

Do you have an opinion, Dr. Humes, as to whether there were dumdum bullets used specifically on this would which struck point "A" of the head, on 388?
Commander HUMES. I believe these were not dumdum bullets, Mr. Specter. A dumdum bullet is a term that has been used to describe various missiles which have a common characteristic of fragmenting extensively upon striking.

Mr. Specter.

Would you characterize the resultant effect on this bullet as not extensive fragmenting?
Commander HUMES. Yes. Had. this wound on point "A" on Exhibit 388 been inflicted by dumdum bullet. I would anticipate that it would not have anything near the regular contour and outline which it had. I also would anticipate that the skull would have been much more extensively disrupted, and not have, as was evident in this case, a defect which quite closely corresponded to the overlying skin defect because that type of a missile would fragment on contact and be much more disruptive at this point.

Mr. Specter.

At this point would you state for the record the size and approximate dimension of the major wound on the top of the head which you have marked wound "B"?
Commander HUMES. This was so large, that localization of it in a descriptive way is somewhat difficult.
However, we have mentioned that its major--its greatest dimension was approximately 13 cm. The reason it was difficult to measure is that various