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    • Strucral Formulæ of the Chlorophylls - Nature

      Nature· 1 day ago

      This seemed necessary as a monomethyl ester (phæopurpurin 7) was obtained as one of the products of an oxidative hydrolysis (‘phase test’) and the position of the methoxyl group in this phæopurpurin ...

    • Kincardine-on-Forth Bridge - Nature

      Nature· 1 day ago

      Hitherto, traffic from Edinburgh to the north bank of the Forth had to cross either by the ferry at Queensferry or by the bridge at Stirling twenty-five ...