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Mitosis in Allium cepa stained with brilliant cresyl blue Sweet, Harmon


Brilliant cresyl blue has been used but little in botanical histology. The preparation and methods of use of the stain in squash technique are described. The technique is then used to follow the mitotic cycle in Allium cepa. It is shown to be an excellent morphological stain and it has moreover some promise of being useful in cytology. Some seventy photomicrographs demonstrate its possibilities.

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