. The Americana : a universal reference library, comprising the arts and sciences, literature, history, biography, geography, commerce, etc. of the world. 5 §~ — Z> ?Z H ••2 ! O T3 bo. HANDY ANDY —HANG-CHOW Inks.—Tables for characters of» nks the determination of the by qualitative chemicaltests have been pub-lished by Robertson, Hofmann and the same end spe-cial devices have beenmade to solve questionsrelating to the composi-tion of inks without af-fecting the documentor writing fluid: Do-remus by means of thespectroscope, Frazerthrough absorption oflight admitted to and Fig. 4.—
. The Americana : a universal reference library, comprising the arts and sciences, literature, history, biography, geography, commerce, etc. of the world. 5 §~ — Z> ?Z H ••2 ! O T3 bo. HANDY ANDY —HANG-CHOW Inks.—Tables for characters of» nks the determination of the by qualitative chemicaltests have been pub-lished by Robertson, Hofmann and the same end spe-cial devices have beenmade to solve questionsrelating to the composi-tion of inks without af-fecting the documentor writing fluid: Do-remus by means of thespectroscope, Frazerthrough absorption oflight admitted to and Fig. 4.—A trac-ing by camera lu-cida of the mar-gins of an inkline drawn by apen fixed to aruling machine. Itis enlarged 60 di-ameters. There isan absence of theirregularities al-ways found inthe margins ofink lines made bythe human hand.
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Keywords: ., bookcentury1900, bookdecade1900, bookidamericanauni, bookyear1903
