However, Koch never credited the Hesses for their discovery of bacteriological agar, perhaps because, at the time, he failed to recognize its importance. Even after he received the insight about agar from the Hesses, Koch stuck with gelatine for years. In 1883-84, during his first medical expedition to Egypt and India to investigate cholera, he tried and failed to grow the cholera bacterium on gelatine media in the hot climate of Cairo (despite using a half-open fridge for incubation), only succeeding in the colder winter of Calcutta.
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Friedmann and his mother moved to Nashville in 1986, when Friedmann was seventeen. Toni Jo’s mother lived there, and Victor was still working in Saudi Arabia. Friedmann’s inner turmoil turned outward. He began behaving erratically, holing himself up in his room. Toni Jo, fearing that he intended to harm her, called the police. Officers discovered a cache of handguns. Friedmann claimed that he’d found them. He wasn’t arrested, but Toni Jo was frightened enough to relinquish custody of him and return to Saudi Arabia.