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The first cases in the United States of swine infections caused by the fungus Microsporum nanum are reported. The infections occurred in a herd of Yorkshire swine in Pennsylvania. The dermatophyte, which readily produced experimental infections, was identified by isolation and studies in pure cultures.

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the way he applied it in developing research plans for gaining a better understanding of reproductive physiology were indeed rare during the first two decades (193G1950) of his research career. Later on, his students and other colleagues followed his lead and made it a more common way of approaching a problem.His approach to a broad practical or theoretical problem was not to attack it in its entirety but to ask himself what the most likely elemental contributing factors might be and then to develop the kind of experimental procedures that seemed most apt to reveal the roles played by each of these component parts alone and in various combinations in the overall picture. Then, with the resultant well-established basic knowledge about the