PLATE 12 

 Metaphase, Anaphase and Telophase. 



Fig. 47. Precocious splitting of the terminal knobs of the final segmenta- 

 tion skein, forming an equatorial belt of chromidial cloud in which are embedded 

 eight paired chromatin masses. Final prophase. 



Fig. 48. Metaphase equatorial plate. Macrokaryosome apparently a part 

 of it. Two blepharoplasts of two basal granules each. Spindle oriented either 

 in relation to the blepharoplasts or the major axis of the cell. Intranuclear 

 chromidial cloud. 



Fig. 49. Same as figure 48; chromatin granules lodged upon the spindle 

 fibers. Clearing up of intranuclear chromidial cloud. 



Fig. 50. Metaphase spindle. Seven chromosomes can be seen, one being 

 only half so large as the others. Transverse splitting of all chromosomes except 

 the small one. No chromatin within the nucleus except that upon the equatorial 

 plate. No evidence of maerokaryosome, peripheral chromatin, or centrosome 

 granules. From material killed in hot Schaudinn 's fluid and stained in saf ranin, 

 gentian-violet, orange G. 



Fig. 51. Anaphase. Unequal amounts of chromatin passing to the daughter 

 poles. The chromosomes are stuck together. Intranuclear chromidial cloud. 



Fig. 51. Anaphase. Irregularly lobed chromatin masses collected at respec- 

 tive daughter poles. Separation fibers evident. Intranuclear chromidial cloud. 



Fig. 53. Anaphase. Organization of daughter chromatin masses into linear 

 skeins. Daughter rhizoplasts connecting the daughter blepharoplasts. 



Fig. 54. Telophase. Daughter nuclei separated. Intra- and extranuclear 

 chromidial cloud. Daughter blepharoplasts and related nuclei shifted to opposite 

 sides of the sulcus. 



Fig. 55. Telophase. Same as figure 54. Extranuclear chromidial cloud 

 deepens. 



Fig. 56. Chromatin has separated out into four large masses, an extra large 

 mass being in one daughter cell. Daughter rhizoplasts heavy. 



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