The application of the benzidine colours in all branches of printing . ! I Anlllue Black dischargeil withCbloramine Yellon-,. Aniline Black discharged nithBenzo Sky Bine. Aniline Black discharged nitbBenzo Pnrpnrine 4 B.

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Keywords: ., bookcentury1800, bookdecade1890, bookidapplicationo, bookyear1898