<style face="normal" font="default" size="100%">The effect of spring temperature on the appearance dates of British butterflies 1883-1993</style>

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0<style face="normal" font="default" size="100%">The effect of spring temperature on the appearance dates of British butterflies 1883-1993</style><style face="normal" font="default" size="100%">The effect of spring temperature on the appearance dates of British butterflies 1883-1993</style>