This is somewhat difficult, because as back to when we were actually looking for the fragments of metal, as we moved the scalp about, fragments of various sizes would fall to the table, and so forth, so it was difficult to put that exact figure into words.
However, the thing which we considered of importance about these three fragments of bone was that at the margins of one of them which was roughly pyramidal in shape, there was a portion of the circumference of what we interpreted as a missile wound. We thus interpreted it this because there was, the size was, sufficiently large for us, for it to have the curve of the skull still evident. At the point of this defect, and I will draw both tables of the bone in this defect, at the area which we interpreted as the margin of a missile wound, there was a shelving of the margin.
This would, to us, mean that a missile had made this wound from within the skull to the exterior. To confirm that this was a missile wound, X-rays were made of that fragment of bone, which showed radio-opaque material consistent and similar in character to the particles seen within the skull to be deposited in the margins of this defect, in this portion of the bone.
Mr. Specter. Then what conclusion did you reach as to what caused that hole reconstructed from the three portions of the late President's scalp?
Commander Humes. We reached the conclusion a missile entered the left—the right posterior inferior portion——
Mr. Specter. Doctor, perhaps it would be helpful if you would refer to that as letter "A" and the exit as letter "B", so that the record is clear on those two points and perhaps it will be helpful to your description as well.
And would you mark them as well, with a pencil?
Commander Humes. That is not entry for the second.
Mr. Specter. Exit for the second?
Commander Humes. I will label 388 with the letter "A" to indicate our opinion as to the wound of entrance into the skull.