Where to find this - Abbott and costello jack

During this recital Edna Markham said not one word. When he had finished, she looked steadily at him for a few moments, and then she said "Captain Horn, what you have told me are the plans and opinions of others. Abbott and costello jack seems to me that you are now called upon to say something for yourself. When I heard it, I considered it absurd, and mentioned it to you only because I was afraid I would be misrepresented.