I plopped my briefcase on his desk and pulled out all the specimens and dumped them in front of him. I said, "Just look at these. This 'Tearproof Paper' has deteriorated. These specimens are useless. Right in front of all the Rude chemists, they go bad. Most of them are new ones, too. How can this be possible? Just look at them." Mr. Spardleton picked up one of the sheets, rubbed it, and then tugged at it gently to tear it. It did not tear. He pulled harder, and then harder, and it did not tear. I stared at him in disbelief and said, "Oh, Mr. Spardleton, this is no time to play games with me." I took one of the sheets and yanked it, and almost cut my fingers. I bent over and put my hands on my knees to get better leverage just as I had the very first time, but the sheet would not tear. I threw it on the desk and tried another with the same results. One after another I ran through them all while Mr. Spardleton sat back and watched me. I was wild-eyed when I finished. Mr. Spardleton said, "Mr. Saddle, would you mind telling me what has happened?" I pulled up a chair, groped for my voice, and finally got the story out. He looked at me strangely, tried to tear another of those miserable little sheets, and said, "Mr. Saddle, do you feel all right?" In Boston I had been completely deflated and bewildered, but now I was mad. I grabbed up the phone and called Callahan. I had barely started to pour out the story when he said, "I'm glad you called, Carl. We seem to have run into something on this paper thing. Looks bad. Can you come out?" "Be right there." I hung up. Mr. Spardleton went out with me; he didn't want me to go anywhere alone. Callahan was holding two sheets up to the light when we went into his lab. He said, "Two identical sheets, except for the moisture content. Moisture is the devil. One of these is dry, the other contains three per cent moisture. Here's the dry one." He tore it in half effortlessly. "Here's the moist one." And he strained at it, but it would not tear. "We just ran across this effect last night, and finished checking it out an hour ago. Have you been to Rude Associates yet?" I nodded. "Too bad. We'll have to show them what can happen." Mr. Spardleton said, "They already know." Callahan said, "This kicks the whole thing in the head. The paper can never be more than a laboratory curiosity, as far as we can see. The sun, a dry climate, heat, any of these things will drive off the moisture, and the paper will lose its strength. There's no way we can market a product like that when it might lose its strength at any time. I'm afraid the 'Tearproof Paper' must join the huge list of fine products that can't be sold because of one small flaw."