Mr. CADIGAN. Well--Commission Exhibit 142 and Commission Exhibit 677--I observed them to have the same appearance under ultraviolet light, and that appearance was different from Commission Exhibit 364. Mr. DULLES. Can you identify these three exhibits, because otherwise I think it will be very difficult to get into the record. Mr. EISENBERG. Yes, sir; 142 being the bag found on the sixth floor of the TSBD, 677 being the sample obtained that day from the shipping room in the Texas School Depository, and 364 being a replica made some ten days later out of paper obtained some 10 days later. Did that complete your examination of the gross or physical characteristics, as opposed to the microscopic characteristics? Mr. CADIGAN. Yes; that in essence was the extent of the examination I made at that time. Mr. EISENBERG. Did you go on to examine for microscopic characteristics? Mr. CADIGAN. Yes; I believe I mentioned that at the time I had examined these papers under the microscope. Mr. EISENBERG. You mentioned that at the time? Mr. CADIGAN. Yes; earlier this morning. Mr. EISENBERG. Yes. Could you tell us what the results were of your examination under the microscope? Mr. CADIGAN. Again, I found that the paper sack found on the sixth floor, Commission Exhibit 142, and the sample secured 11-22, Commission Exhibit 677, had the same observable characteristics both under the microscope and all the visual tests that I could conduct. Mr. EISENBERG. Could you go into detail as to what you did see under the microscope? Mr. CADIGAN. Well, I think perhaps this photograph, I have an enlarged photograph, one side being the---- Mr. DULLES. Which side is that? Mr. EISENBERG. One side marked K-2, and the other Q-10? Mr. CADIGAN. Yes; K-2 corresponds to the known paper sample 677. Mr. EISENBERG. Obtained from the TSBD? Mr. DULLES. What date? Mr. CADIGAN. November 22. Mr. DULLES. On the day of the assassination? Mr. CADIGAN. Yes. And the Q-10 marking is the same as the paper bag found on the sixth floor, Commission Exhibit 142. Mr. EISENBERG. Did you take this photograph or was it taken under your supervision? Mr. CADIGAN. I had it made. Mr. EISENBERG. Mr. Chairman, may I have it in evidence? Mr. DULLES. Admitted. Mr. CADIGAN. I would like to point out this is only one phase of the examination and this is a black-and-white photograph. In your examination under the microscope you are looking at the surface and memorizing everything about that surface your mind can retain by putting the two pieces of paper together and studying them back and forth. I don't wish to imply that that photograph represents all I can see in a microscope, because it doesn't. Mr. EISENBERG. We understand that. May I have this, Mr. Reporter, marked as 678. (Commission Exhibit No. 678 was marked, and received in evidence.) Mr. DULLES. That has already been admitted. Mr. EISENBERG. Yes. Now, what is the magnification in this Exhibit 678?