In the Caucasian race, the cuticle, in other words, the layer of scales around the outside of the hair, is medium to thick. In the Negroid hair the cuticle is very thick. In the Mongoloid hair the cuticle is very thick. Pigmentation in the cortex, which gives the hair the color, in Caucasian hair is very fine to coarse and is very evenly distributed throughout the cortex of the hair. In Negroid hair the pigment is medium to coarse, but the big difference is that the pigment granules are clumped together, leaving large white-gapped areas throughout the cortex of the hair. In the Mongoloid hair, the pigment is medium to coarse but it is very heavily distributed throughout the hair. As you can see, in the Caucasian hair the cortex is relatively light. In Negroid hair it is clumped, and in Mongoloid hair it is dense. Mr. EISENBERG. Mr. Chairman, may I have this chart admitted as 669? Mr. DULLES. It is admitted as 669. (Commission Exhibit No. 669 was marked, and received in evidence.) Mr. EISENBERG. You have a chart here "Racial Determination of Hairs," and no subcaption, is that right? Mr. DULLES. You haven't asked for this other to be admitted, have you? Mr. EISENBERG. No; I will ask after he has finished with it. Mr. STOMBAUGH. Occasionally we will run into situations in hairs, where we cannot determine with any certainty whether or not the hairs are of the Caucasian or Negroid or Mongoloid race, by examining it longitudinally, and we have to make a cross-section of the hair. If we make a cross-section of the hair it is the same as taking a banana and cutting off a very thin slice of the banana and placing it under a microscope and examining it. We find in the Caucasian race the hairs are oval in shape. In the Negroid race the hairs are flat, and have a flattened appearance, and in the Mongoloid race they are perfectly round. This is another characteristic which we use in determining the racial origin of hair. Mr. EISENBERG. May I have this chart admitted as 670? Mr. DULLES. Yes. (Commission Exhibit No. 670 was marked, and received in evidence.) Mr. EISENBERG. Was it definitely established in your mind as a result of the various characteristics you have explained that the hairs found in the blanket were Caucasian hairs? Mr. STOMBAUGH. Yes, sir; they were all Caucasian hairs. Mr. EISENBERG. Did you examine those hairs and compare them with any known samples to determine whether they might have come from any specific individual? Mr. STOMBAUGH. Yes; I did. Mr. EISENBERG. What was your conclusion on that score? Mr. STOMBAUGH. I examined the hairs found on the blanket and determined that most of them were limb and pubic hairs. In other words, they originated either from the leg or the arm or from the pubic area. I found several head hairs on the blanket also.