Table II in this paper enables one to convert the results of red cell counts, hemoglobin estimations, and cell volume determinations directly into all the percentage figures that are necessary for the calculation of the color, volume and saturation indexes. The table can also be used to convert percentage of hemoglobin (when estimated by methods in which 100 per cent indicates a content of 13.8 gm. per 100 c.c.) into grams of hemoglobin per 100 c.c. of blood, thus enabling clinicians to report their hemoglobin findings in grams as has recently been strongly recommended. In addition, the table shows the average figure and the significant variations for red cell counts, hemoglobin estimations, and cell-volume determinations in young men and women. Chart 1 is so constructed that the color index, volume index and saturation index figures for any blood may be found by inspection without calculation from the percentage figures that have been obtained from Table II.
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Edwin E. Osgood (1927) studied this question.