Practical physiological chemistry; a book designed for use in courses in practical physiological chemistry in schools of medicine and of science . colorimeterplungers is replaced by the plate A withtwo slots in which are supported thenephelometer tubes B with their flangesresting on the edges of the slots. The slotsare so cut that the center fines of the tubesare exactly in line with the centers of thelower openings of the prism case E. If desired they may be countersunk to re- ^oksNep^ the flanges. The colorimeter cups are replaced by the jackets C which project through


Practical physiological chemistry; a book designed for use in courses in practical physiological chemistry in schools of medicine and of science . colorimeterplungers is replaced by the plate A withtwo slots in which are supported thenephelometer tubes B with their flangesresting on the edges of the slots. The slotsare so cut that the center fines of the tubesare exactly in line with the centers of thelower openings of the prism case E. If desired they may be countersunk to re- ^oksNep^ the flanges. The colorimeter cups are replaced by the jackets C which project through the holes in thecup supports F and are supported on them by the collars D. Theymove when the cup supports move. The mirror is turned to thehorizontal position so that it reflects no light. The fight in the nephe-lometer comes from in front and not from below (see Fig. 84). Thenephelometer tubes are small test-tubes 100X15 mm., preferablymade from the same sample of colorless glass tubing so that they areof exactly the same bore. The flanges at the top should be well madeso that the tubes rest firmly and evenly in the slots. The glass should. Richards: Zeilschr. f. anorg. CItem., 7, 269, 1895. - Greenwald: Jour. Biol. Cliem., 21, 29, 1915; Bloor: Jour. Biol. Chem., 22, 133, 1915; Kober and Egerer: Jour. Am. Chem. Sac, 37, 2373, 1915.^ Bloor: Jour. Biol. Client., 17, 377, 1914; /. Am. Chem. Soc, 36, 1300, • Folin and Denis: Jour. Biol. Chem., 18, 263, 1914; Marriott: same, 16, 289, 1913. * Graves and Kober: Jour. Avi. Chem. Soc, 37, 2430, 1915. Graves: /. Am-. Chem. Soc., 37, 1181, 1915. Lyman: Jour. Biol. Chem., 21, 551, 1915. * Kober: Jour. Biol. Chem., 13, 485, 1913; Jour. Am. Chem. Soc., 35, 15S5, Bloor: Jour. Biol. Chem., 22, 145, 1915. 292 PHYSIOLOGICAL CHEMISTRY be as free as possible from imperfections and striations. After thetubes are made and fitted into place the jackets are moved up oneach tube by means of the rack and pinion until the indicator on the


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbiochem, bookyear1916