Representative FORD. And the arrow, "B," is on Exhibit 626? Mr. LATONA. That's correct. Now, in making a comparison of prints to determine whether or not they were made by the same finger, an examination is made first of all of the latent print. An examination is made to see if there are in the latent print any points or characteristics which are unique to the person making the determination. In other words, in looking at the latent print, for example, this point, which is marked "1," is a ridge. The black lines are what we term ridges. They were made by the ridge formations on the fingers. That is, when the finger came in contact with the brown paper bag, it left an outline in these black lines on the brown paper bag. Now, in looking at the latent print in the enlargement you notice there is one black line that appears to go upward and stop at the point which has been indicated as point No. 1. Mr. EISENBERG. Mr. Latona, may I interrupt you there for a second. Mr. Chairman, I would like to introduce this chart, this comparison chart, as an exhibit. Representative FORD. It may be admitted. Mr. EISENBERG. That will be 634. (The item referred to was marked Commission Exhibit No. 634 and was received in evidence.) Mr. LATONA. Looking further we notice---- Mr. DULLES. Could I just ask a question about this? This is referring to Exhibit 634. I want to make sure what line we are talking about. You are talking about a black line that goes up as though two rivers came together there, and here is the point where this line stops. Mr. LATONA. That's correct. Mr. DULLES. No. 1. This is the latent? Mr. LATONA. This is the imprint. This is the print on the bag. Mr. DULLES. Yes. Mr. LATONA. The contrast here is not as good as it is here. Mr. DULLES. This goes up here, and these two lines come in there, so there is the point where your black line stops? Mr. LATONA. Right at the end of the red line which is marked "1." Mr. DULLES. Thank you. Mr. LATONA. Now, looking further we find this point that has been indicated as No. 3. And No. 3 is located---- Mr. DULLES. Why do you skip 2? Mr. LATONA. I am going to come to that. Mr. DULLES. I see. Mr. LATONA. I am going to tie these three in. Point No. 3 is above and to the left one ridge removed from--one black line--there is No. 3. Now looking further, we can look over to the right, or rather to the left, and we notice that one ridge removed from No. 3 are two ridges that come together and give you a point which has been indicated as No. 2. Mr. EISENBERG. Is that what you might call a bifurcation? Mr. LATONA. That is referred to, generally speaking, as a bifurcation. Mr. EISENBERG. That is No. 2? Mr. LATONA. And No. 1 is what is referred to as a ridge end.