Mr. Eisenberg. Well, Mr. Chairman, I have one subject remaining with this witness. Mr. Cunningham, are you familiar with the paraffin test?
Mr. Cunningham. I am.
Mr. Eisenberg. Have you administered this test?
Mr. Cunningham. I have.
Mr. Eisenberg. Can you give us the approximate number of times you have administered it?
Mr. Cunningham. I don't know the exact number, but I must have performed this test at least 100 times, and probably more.
Mr. Eisenberg. Now, I will state for the record—I know you do not know of this of your own knowledge, Mr. Cunningham—but a paraffin test was performed on Lee Harvey Oswald by the Dallas Police. Three paraffin casts were made, one of the right cheek, one of the right hand, and one of the left hand. There was no reaction on the paraffin test of the right cheek. There was a reaction on the paraffin test of each of the right and left hands.
I will now hand you a sketch which was made by a participant in those tests, which shows the distribution of the blue or violet dots which constitute a positive reaction to this test on the left and right hands of Lee Harvey Oswald.
Representative Boggs. Before you do that, Mr. Cunningham, will you describe briefly the procedure on a paraffin test? I want to understand exactly what it is.
Mr. Cunningham. The so-called paraffin test is the making of reinforced paraffin casts, of a person's hands, and then treating either with either one of two reagents. One is diphenylamine, and the other is diphenylbenzidine.