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[[note in top margin with double underline in red and black]] X Lightproof C. [[/note in top margin]] 132 [[note written vertically in left margin]] Nikolas Light proof C. [[/note in left margin]] about results of their work and divided further work. [[red underline]]Hamlin [[/red underline]] has repeated experiments of [[red underline]] Gotthelf [[/red underline]] in producing [[red underline]]permanent transparent C. ^[[X]] [[/red underline]] for pipe stems which does not change in color except slightly. By making A from [[red underline]]Hexamethylenetetramine triphenol, [[/red underline]] heated then mixed with some benzyl-benzoate anilin, terpineol and similar solvents then heating under pressure. Beautiful mild day Spent most of afternoon and evening on talking machine, dictating all letters of belated mail. Evening. [[red underline]] Robert de Vecchi [[/red underline]] here for supper. Monday. Dec. 22. Early to Brooklyn [[red underline]] testimony in library. Mersereau [[/red underline]] appeared and stated that he had analyzed carbolic acid [[end page]] [[start page]] 133 [[vertical note in left margin]] Nikolas [[/vertical note in left margin]] from National [[Aniline?]] & Chemical Co containing as much as [[red underline ]] 1% [[pyridine?]] [[/red underline]] and remembers a sample some years ago which contained 2%. Stated however that he found [[black underline]] no [[/black underline]] ammonia. Stated also that he never had analyzed cristalline carbolic [[red underline]] Nikolas [[/red underline]] submitted as only bill obtainable a bill from recently ordered. (within the time of trial) crude carbolic acid 5 barrels. after he had [[strikethrough]] said [[/strikethrough]] admitted that he only had obtained sample lots from there. We saw on telegram he had sent that he had wired for [[red underline]] "Alcohol Lacquer Bestead [[/red underline]] filter". So [[red underline]] Neave [[/red underline]] immediately told us secretly to secure some of this lacquer which after all was not such a dark secret because it is obtainable in open market. Suit postponed to next Monday.