McGill Libraries
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H3A 0C9
Worksheets.; 1 reprint, added to file Nov. 1978.; 11 pieces of correspondence with Cowdry, one of which includes a summary of the article.
Material for article taken from work done at the Laboratoryof Neurocytology, Prebyterian Hospital, New York.
3 duplicates discarded Feb. 2021. 1 duplicate discarded Aug 2021.
Material interleaved with acid-free paper, Summer 2021.