The main trouble lay in the fact that it was apparently impossible to transmit a concept directly from Brain A to Brain B unless the basic building blocks of the concept were already present in Brain B. Raphael Poe, for instance, had spent a long time studying Russian, reading Dostoevski, Tolstoy, and Turgenev in the original tongue, familiarizing himself with modern Russian thought through the courtesy of _Izvestia_, _Pravda_, and _Krokodil_, and, finally, spending time in the United Nations building and near the Russian embassy in order to be sure that he could understand the mental processes involved. Now, science has a language of its own. Or, rather, a multiplicity of languages, each derived partly from the native language of the various scientific groups and partly of borrowings from other languages. In the physical sciences especially, the language of mathematics is a further addition. More than that, the practice of the scientific method automatically induces a thought pattern that is different from the type of thought pattern that occurs in the mind of a person who is not scientifically oriented. Lenny's mind was a long way from being scientifically oriented. Worse, he was a bigot. He not only didn't know why the light in his room went on when he flipped the switch, he didn't _want_ to know. To him, science was just so much flummery, and he didn't want his brain cluttered up with it. Facts mean nothing to a bigot. He has already made up his mind, and he doesn't intend to have his solid convictions disturbed by anything so unimportant as a contradictory fact. Lenny was of the opinion that all mathematics was arcane gobbledygook, and his precise knowledge of the mathematical odds in poker and dice games didn't abate that opinion one whit. Obviously, a mind like that is utterly incapable of understanding a projected thought of scientific content; such a thought bounces off the impregnable mind shield that the bigot has set up around his little area of bigotry. Colonel Spaulding had been aware of these circumstances since the inception of the Operation Mapcase. Even though he, himself, had never experienced telepathy more than half a dozen times in his life, he had made a study of the subject and was pretty well aware of its limitations. The colonel might have dismissed--as most men do--his own fleeting experiences as "coincidence" or "imagination" if it had not been for the things he had seen and felt in Africa during World War II. He had only been a captain then, on detached duty with British Intelligence, under crusty old Colonel Sir Cecil Haversham, who didn't believe a word of "all that mystic nonsense." Colonel Haversham had made the mistake of alienating one of the most powerful of the local witch doctors.