. Biological stains; a handbook on the nature and uses of the dyes employed in the biological laboratory. Stains and staining (Microscopy); Stains and Staining; Dyes. Quinone-imine Dyes 105 .9—. 450 I t I ^90 I I I I I I I I I 530 570 I I I I I I I l-l 610 650 690 Fig. 11. Spectral curves of three thiazin dyes: 1. Methylene blue. 2. Thionin. 3. Methylene violet. the sake of uniformity the paraquinoid form will be shown in the following pages wherever possible; but with the understanding that the orthoquinoid form is equally Please note that these images are extracted from scanned

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. Biological stains; a handbook on the nature and uses of the dyes employed in the biological laboratory. Stains and staining (Microscopy); Stains and Staining; Dyes. Quinone-imine Dyes 105 .9—. 450 I t I ^90 I I I I I I I I I 530 570 I I I I I I I l-l 610 650 690 Fig. 11. Spectral curves of three thiazin dyes: 1. Methylene blue. 2. Thionin. 3. Methylene violet. the sake of uniformity the paraquinoid form will be shown in the following pages wherever possible; but with the understanding that the orthoquinoid form is equally Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Conn, H. J. (Harold Joel), 1886-1975. Geneva, N. Y. , Biotech Publications

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