Mr. Johnston. The letter is rubber stamped June 22, 1964.

Mr. Hubert. And you received it when?

Mr. Johnston. It was received in the U.S. Post Office, Dallas, Tex., on June 23, and had to be forwarded to the Post Office at Richardson, Tex., where it was received on June 24, and I received the same on June 24, 1964 at 12:10 p.m.

Mr. Hubert. Under the rules of the Commission which you have probably complied with here, every witness has a right to a 3-day written notice before their deposition can be taken, counting from the date of the letter, but in any case the rules provide that a witness may waive the 3-day notice.

Mr. Johnston. I will waive that at this time, if it’s involved here; yes, sir.

Mr. Hubert. Thank you. Would you rise and be sworn.

Do you solemnly swear that the testimony you are about to give in this matter shall be the truth, the whole truth, and nothing but the truth, so help you God?

Mr. Johnston. I do.

Mr. Hubert. Will you state your name, please, sir?

Mr. Johnston. I am David L. Johnston.