PART II 



H^IMATOLOGY 



ESTIMATION OF THE AMOUNT OF HEMOGLOBIN 



There are numerous forms of heemoglobinometer now in use. 

 Two of them (Haldane's and Sahli's) are modifications of Gowers' 

 old instrument, and of these Haldane's is undoubtedly the best 

 and most accurate. Sahli's is the simpler in use, and is suffi- 

 ciently accurate for most purposes. Oliver's instrument is a 

 good one, but it has no advantage over the others, and is decidedly 

 more expensive. 



Fig. 39. — Gowers' H.emoglobinometer. 



We shall describe the method of using Gowers' hasmoglobino- 

 meter, since many practitioners may possess it, and indicate 

 the differences in the technique with Haldane's and Sahli's 

 instruments. 



Gowers' H.t.moglobinometer consists of two tubes mounted 

 in a small stand. One of these tubes is filled with jelly tinted 

 to represent the colour of normal blood of a certain degree of 



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