THE BLOOD OF CHICK EMBRYOS
233
• Ell 2
• Ell,
• El
Q
Od
<
• Ell 2
Β
FIG. 10. Balance of erythrocyte production and destruction throughout the incubation
period. A—Total number of primitive (Ε I) and definitive erythrocytes with round (E
and oval or oblong nuclei (E II 2 ) in the circulation of chick embryos from the 2nd day of
incubation to the 1st postembryonic day. Β—Total numbers of the three erythrocyte
types destroyed up to the 1st postembryonic day. (?—indicates only approximate
estimation of Ε II 2 destruction.)
233
• Ell 2
• Ell,
• El
Q
Od
<
• Ell 2
Β
FIG. 10. Balance of erythrocyte production and destruction throughout the incubation
period. A—Total number of primitive (Ε I) and definitive erythrocytes with round (E
and oval or oblong nuclei (E II 2 ) in the circulation of chick embryos from the 2nd day of
incubation to the 1st postembryonic day. Β—Total numbers of the three erythrocyte
types destroyed up to the 1st postembryonic day. (?—indicates only approximate
estimation of Ε II 2 destruction.)