Abstract
The estimation of the percentage proportion of two Hb's was made by the method of heat coagulation on many individual samples of adult salmon and on a combined sample from larval salmons.
The frequency curve of all the fish analyzed showed an almost normal curve, the proportion of component F:S being 63 ?? 49%:37 ?? 51% and about 55%:45% on an average. It seems that the proportion correlates to several factors such as the place and season of catching, water temperature, and body length except for sex. Most probable is the correlation with body length, which is supported by the proportion (F:S=24%:76%) of larval blood. Correlations with the other factors might be different phases of the correlation with body length.