Mr. Stombaugh.

Viscose is a synthetic fiber that is made by man. It is composed of chemicals, and is very rough around the outside area, having many striations running through it. The viscose fiber I have drawn here is what we would term a lustrous filler. It does not have the delustering agent added to it, to cut down the luster. If this were a delustered fiber then we would have millions of small spots on the outside of this fiber which have been placed there. chemically so as to cut down the luster of the fiber.

Mr. Eisenberg.

Was the viscose in the blanket that we have been examining lustered or delustered?

Mr. Stombaugh.

This was delustered.

Mr. Eisenberg.

Mr. Chairman, may I introduce the chart which the witness has been discussing as 665?
This chart was prepared by you or under your supervision, Mr. Stombaugh?

Mr. Stombaugh.

It was prepared by me.

The Chairman.

What is the number?

Mr. Eisenberg.

That will be 665.
(Commission Exhibit No. 665 was marked, and received in evidence.)

Mr. Eisenberg.

Mr. Stombaugh, did you examine this blanket to determine whether any debris was present?

Mr. Stombaugh.

Yes; I did. I scraped the blanket and removed all the foreign textile fibers and hairs and placed them into a pillbox.

Mr. Eisenberg.

Can you describe to us how this scraping was performed?

Mr. Stombaugh.

Yes, sir. We suspend the blanket from a rack in the laboratory, place a clean sheet of kraft paper on a table directly under it and, using a spatula, thoroughly scrape it down. This knocks all the foreign material adhering to the blanket from the blanket, and it falls down to the paper. After we have thoroughly cleaned the blanket, then we scrape up all the debris and place it in the pillboxes for a microscopic examination.

Mr. Eisenberg.

Why do you use this scrape method, as opposed to a fine-filter vacuum cleaner?

Mr. Stombaugh.

We have found that the fine-filtered vacuum cleaner pulls all of the dirt and old debris from a blanket which are embedded on the inner portion of the fabric. We are not interested in this material. We are interested only in what is adhering to the top surface, which has been put there most recently. Through experience in the laboratory we have found this method to be the best so far.

Mr. Eisenberg.

So that by use of the scrape you gathered the more recent debris, as opposed to the older debris?

Mr. Stombaugh.

That is correct.

Mr. Eisenberg.

And what type of debris did you find, Mr. Stombaugh?

Mr. Stombaugh.

I found numerous foreign textile fibers of various types and colors, as well as a number of limb and pubic hairs.

Mr. Eisenberg.

Did you draw any conclusions as to those hairs upon your initial examination of them?

Mr. Stombaugh.

Yes; I did. They all had originated from a person of the Caucasian race and I compared these hairs with hair samples obtained from Harvey Oswald----

Mr. Eisenberg.

That is Lee Harvey Oswald?

Mr. Stombaugh.

That is, Lee Harvey Oswald, and I found that of the limb and pubic hairs I removed from the blanket, several matched Oswald's in all observable microscopic characteristics and could have originated from Oswald.

Mr. Eisenberg.

You said these hairs were from a person of Caucasian race. Can you explain how you can tell the difference between hairs of the various types of races?

Mr. Stombaugh.

Yes, sir. Going back to my charm, I have a chart here which contains a diagram of a hair. This isn't any particular hair, this is a type of hair that could be animal or human. I am just using this to give one an idea of what a hair looks like.
First, we have the root, which is the portion of the hair embedded in the scalp or in the skin, whichever type hair it might be.
(At this point, Mr. Dulles entered the hearing room.)