70
G.
REVERBERI
200
FIG. 19. Inhibition of respiration by CO in the dark (D) in the fertilized (line 2)
Phallusia egg ; line 1, control (Minganti, 1957c).
3
4
Hours
FIG. 20. Respiration of the unfertilized Phallusia egg: normal conditions (line 1);
and after treatment by DECA or CO (line 2) (Minganti, 1957c).