Table $: — Comparison of microhematocrit values obtained with trout blood pretreated with 

 heparin and with untreated blood which clotted in plain capillaries. Both 

 types of blood were centrifuged in identical conditions. 



1/ The clot was so compact that it would not break away from the wall of the capillaries 

 and separate when centrifuged in the microhematocrit centrifuge \mless separated from 

 the walls of the capillaries by means of a fine wire. 



Table 6: — ^Determination of hemoglobin in 10-month old trout by means of two methods 

 expressed as grams of hemoglobin per 100 ml. of blood. 



10 



