. The dynamics of living matter. Biochemistry; Reproduction; Regeneration (Animals). Fig. 10. Fig. ii. Fig. 12. Fig. 13. into normal sea water divided as represented in these drawings. The division began (as was frequently the case) on one side (Fig. 10), and the protoplasm then flowed in the direction of the two arrows (Fig. 11) in opposite directions toward the two nuclei. The connecting piece becomes empty of protoplasm and only the pigmented solid surface film is left (Fig. 12), and finally this also disappears (Fig. 13). It is, however, possible that contractile forces acting in a radial
. The dynamics of living matter. Biochemistry; Reproduction; Regeneration (Animals). Fig. 10. Fig. ii. Fig. 12. Fig. 13. into normal sea water divided as represented in these drawings. The division began (as was frequently the case) on one side (Fig. 10), and the protoplasm then flowed in the direction of the two arrows (Fig. 11) in opposite directions toward the two nuclei. The connecting piece becomes empty of protoplasm and only the pigmented solid surface film is left (Fig. 12), and finally this also disappears (Fig. 13). It is, however, possible that contractile forces acting in a radial direction in an astrosphere might bring about similar results. The process of the cell division proper seems to consist also of several phases. A reduction of volume seems to occur in this process, inasmuch as the combined volume of the two daughter cells appears immediately after the division, smaller than the volume of the mother cell. This diminution of volume may be due to a loss of water, or watery liquid, on the part of the cell. There may also be a process of gelation on the part of certain constituents of the cell, the nucleus, which at this stage appears to form a solid mass, or possesses at its surface a solid wall. 4. The Origin of Radiant Energy in Living Organisms The first investigation of animal phosphorescence that was of any consequence goes back to Faraday, who showed that the phosphores- cent part of a glowworm continues to send out light if it be made into a pulp. This observation speaks against the view of Kolliker and Pfliiger that the phosphorescence of animals is a function of "living" matter, and even, in certain cases, under the control of the nervous system. They were led to their view by the observation that "stimu- lation" could call forth the process of phosphorescence, while poisons and high temperatures caused it to disappear. From this Pfliiger* * Pfliiger's Archiv, Vol. io, p. 251, Please note that these images a
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