A reference handbook of the medical sciences, embracing the entire range of scientific and practical medicine and allied science . ter to be 190. 190 : 100 :: : x100X130^-190 = .\fter a brief experience in using this instru-ment the author is inclined to commend it. 2. Henocques Hcmaloscope.—This instru-ment also depends for its principle upon thesupposition that the amount of hemoglobinvaries with the degree of opacitj of the this instrument, in addition to the degree ofopacity, the quantity of oxyhemoglobin can beascertained bj- means of the spectroscope. Forthis purpose
A reference handbook of the medical sciences, embracing the entire range of scientific and practical medicine and allied science . ter to be 190. 190 : 100 :: : x100X130^-190 = .\fter a brief experience in using this instru-ment the author is inclined to commend it. 2. Henocques Hcmaloscope.—This instru-ment also depends for its principle upon thesupposition that the amount of hemoglobinvaries with the degree of opacitj of the this instrument, in addition to the degree ofopacity, the quantity of oxyhemoglobin can beascertained bj- means of the spectroscope. Forthis purpose the hand spectroscope illustratedabove (Fig. 774) can be used but as von Jakschstates, there is a difference of opinion as towhen precisely the spectrum is formed, whichmakes the conclusion drawn from the use of theinstrument alwajs somewhat arbitrarj^ The instrument consists of two plates of glass, oneplaced above the other so as to enclose between them Vol. II.—12 a prismatic space. The dimensions of this space areaccurately stated and are the same for every instru-ment. These plates of glass are in contact at one end,. 7S0.—Henocques Hematoscope Filled with Clinical Diagnosis.) (From von forming the apex of the prismatic space. The scaleof measurement at this end is therefore 0. At the other end the glass plates are separated by adistance of millimeters, forming the base of theprismatic space. By referring to the diagram () and illustrations (Figs. 7S0 and 781), thisarrangement wiU be readily understood. The scale upon the glass is marked from 0 to 60, asobserved in Fig. 7S0. There are two methods of using the instrument. (1) The first method is based upon the suppositionthat varying opacity of the blood differs according tovarj-ing quantity of hemoglobin, so that by observingthe former the latter maj be estimated. To use the instrument upon tliis basis, puncture ismade in the skin in the usual way and the dropbrought to the orifice of the pris
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Keywords: ., bookauthorbuckalbe, bookcentury1900, bookdecade1910, bookyear1913
