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Pig ^7 —First anaphase to second anaphase changes in Podophyllum 

 versipelle. A. First anaphase showing internal spiral i^-to^- 

 Interphase showing the development of relic spirals (R. and 1. 

 and sister chromatids held together at the centromere Small 

 nucleoli. G. Early second metaphase. H. and K PoJ^r and 

 side views (with centromeres) of early anaphase. L Chromo- 

 some showing internal spiral. M. Second metaphase with highly 

 spiralised chromosomes. X 2000 (D.. 1936 c). 



