ESTIMATION OF HEMOGLOBIN 

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15 



Fig. 9. Fleischl-Miescher hemometer. 



perience practically the same readings as the more expensive instru- 

 ment of Fleischl-Miescher and is much easier to manipulate and 

 to clean. One hundred per cent, in Dare's hemoglobinometer 

 represents a mixture of 13.77 grams of hemoglobin diluted with 

 100 cc. of serum. 



Fleischl-Miescher hemometer. — This instrument consists of 

 a stand having a stage with a circular opening in which a metallic 

 mixing cell fits. Beneath the stage a standard colored glass wedge 

 with a graduated scale works by means of a rack and pinion. A 

 graduated pipette marked {, § and \ serves to dilute the blood, 

 1:200, 1:300 or 1:400. The mixing cell has a glass bottom. A 

 metal partition which projects slightly above the surface divides 

 the cell into two vertical halves, one for diluted blood, the other 

 for water. A grooved glass disc covers the mixing cell and this is 

 in turn covered by a metal cap having a rectangular opening which 

 serves to cut off from view all but a narrow strip of the colored 

 wedge. 



Method of using. The blood is procured with the usual pre- 



