Examination of the urine; a manual for students and practitioners . acid, etc., which rotate polarized light to the left. A polariscope especially devised for clinical work byUltzmann is made by Reichert of Vienna. It is very con-venient and sufficiently accurate for all purposes,reading from up to per cent. By means of this saccharimeter the percentage of sugar in urine maybe read directly upon the Vernier scale of the instrument. The polari-scopic tube is set upon a stand. A concave mirror illuminates the visualfield. Fig. 14 shows the Ultzmann polariscope in section. In this figure
Examination of the urine; a manual for students and practitioners . acid, etc., which rotate polarized light to the left. A polariscope especially devised for clinical work byUltzmann is made by Reichert of Vienna. It is very con-venient and sufficiently accurate for all purposes,reading from up to per cent. By means of this saccharimeter the percentage of sugar in urine maybe read directly upon the Vernier scale of the instrument. The polari-scopic tube is set upon a stand. A concave mirror illuminates the visualfield. Fig. 14 shows the Ultzmann polariscope in section. In this figurea and b are a system of magnifying ocular lenses focusing the image at the 120 EXAMINATION OF THE URINE point p. The upper prism is marked c, the lower, /. The upper prismis connected with the movable part of the sliding scale; p is a transparentplate of quartz, polarizing to the right and left respectively. The scale isso arranged that each division corresponds to per cent, glucose in theurine at 20 ° C. Tenths of 1 per cent, can be read with the aid of the. Fig. 14.—Ultzmanns polariscope. sliding Vernier. To read the tenths of a degree it is necessary to see atwhich mark of the Vernier there is a perfect alignment with one of themarks of the percentage scale. In Fig. 15, the zero mark on the Vernieris between the fourth and fifth percentage degree on the right half of thescale. To determine how many tenths per cent, besides the 4 per sugar are present, we count the divisions on the small scale from o, and
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Keywords: ., bookcentury1900, bookdecade1900, bookidexaminat, booksubjecturine
