Also present in the cortex you will occasionally find air spaces located among the pigment granules which are known as cortical fusi. These will vary in size, shape, form, and location on the hair. Many hairs do not have any.
Basically that is what a hair looks like, and the basic component parts of the hair.
Mr. Eisenberg. May I have this admitted as 666, this diagram of the hair?
The Chairman. Yes; it may be admitted.
(Commission Exhibit No. 666 was marked, and received in evidence.)
Mr. Stombaugh. Now, keeping the diagram of the hair on the side where we can refer to it, our first differentiation in the hair, of course, would be separating the human from the animal hairs. These are photomicrographs of human hairs which I took through a microscope.
Here are the animal hairs.
The first thing we look for, of course, would be the color, length, and texture of the hair. This comes from experience from looking at thousands of hairs, and we can usually pick one up and tell by the naked eye whether it is animal or human.
Mr. Eisenberg. Pardon me. You are referring to a chart which has on the upper right, "Human Hairs" and on the upper left, "Animal Hairs" as captions?
Mr. Stombaugh. That is correct.