The dynamics of living matter dynamicsofliving1906loeb2 Year: 1906 Fig. i. Fig. 2. ^^fxf^i cs^ Fig. 4. Fig. 5. Fig. 3. FIGS. 1-5. Liquefaction of the cell walls of the egg of Ctenolabrus due to lack of oxygen. (From Nature.) The eggs were exposed to a current of hydrogen. The liquefaction of the cell walls and the formation of droplets began when the egg was in the 8 cell stage (Fig. 2). These droplets fuse into larger drops and finally nothing but these drops indicates the existence of the germinal disk. Figures 2, 3, and 4, are drawn in intervals of 15 minutes. minutes later it
The dynamics of living matter dynamicsofliving1906loeb2 Year: 1906 Fig. i. Fig. 2. ^^fxf^i cs^ Fig. 4. Fig. 5. Fig. 3. FIGS. 1-5. Liquefaction of the cell walls of the egg of Ctenolabrus due to lack of oxygen. (From Nature.) The eggs were exposed to a current of hydrogen. The liquefaction of the cell walls and the formation of droplets began when the egg was in the 8 cell stage (Fig. 2). These droplets fuse into larger drops and finally nothing but these drops indicates the existence of the germinal disk. Figures 2, 3, and 4, are drawn in intervals of 15 minutes. minutes later it was seventy-seven, and then the heart suddenly stopped beating. It is hard to believe that this standstill could have been caused by lack of energy. Hydrolytic processes alone could furnish sufficient energy to maintain the heartbeat for some time, even if all the oxygen had been used up. The suddenness of the standstill at the time when the rate had hardly diminished seems to correspond much more to a sudden collapse of the machine; it might be that liquefactions or some other change of structure occurs in the heart or its ganglion cells, comparable to that which we mentioned before. In another fish, Fundulus, where the cleavage cells undergo no visible changes in the case of lack of oxygen, the heart of the embryo can continue to beat for about twelve hours in a current of hydrogen. In this case the rate of the heartbeat sinks during the first hour in the hydrogen current
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