Yahoo Web Search

Search results

    • Cytochrome System in Oyster Tissues - Nature

      Nature· 2 days ago

      ALTHOUGH some experiments with tissue extracts of the oyster have proved the presence of an oxidase very similar to the cytochrome oxidase of higher animals1,2, it is still ...

    • Nectar-Secreting Glands - Nature

      Nature· 6 days ago

      The following extract of a letter lately received from Fritz Müller (of St. Catharina, Brazil) is of considerable interest in relation to this subject. The glands of the Pteris ...

    • Vitamin A in the Retina - Nature

      Nature· 2 days ago

      I HAVE found vitamin A in considerable concentrations in solutions of the visual purple, in intact retinas, and in the pigment-choroid layers of frogs, sheep, pigs and cattle. The non-saponifiable ...

    • Heidelberg and Academic Freedom - Nature

      Nature· 2 days ago

      TRANSLATIONS of extracts of speeches made at the ceremonial dedication of the Philipp-Lenard-Institut at Heidelberg in December last were given in an article in NATURE of ...