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    Article

    Loss of Specificity on Passage of Immunologically Competent Cells in the Chick Embryo

    WHEN leucocytes from the blood of a fowl more than a few weeks old are placed on the chorioallantois of standard 12-day chick embryos, focal proliferative lesions are produced. These are well developed at four...

    F. M. BURNET, GEORGIANA BOYER in Nature (1960)

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    Article

    Chorioallantoic Membrane Lesions produced by Inoculation of Adult Fowl Leucocytes

    INTEREST in the reaction of the chick embryo to inoculation with adult homologous tissues, noted in 1916 by Murphy1, has been renewed by the investigations of Simonsen2 and Cock and Simonsen3, which indicate that...

    GEORGIANA BOYER in Nature (1960)