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Description of Figures in Plate VII 
Podophyllum peltaum 
Fig. 1. Equatorial plate stage, showing five entire chromosomes and por¬ 
tion of a sixth. Zenker’s fluid. Heidenhain’s iron-alum- 
haematoxylin stain. 
Fig. 2. Metaphasic chromosome, showing internal chromatic and achro¬ 
matic differentiation. Vacuolation already begun. Merkel’s 
fluid. Triple stain. 
Fig. 3. Anaphasic chromosomes, showing different chromosome forms 
resulting from place of attachment of spindle fibers. Inter¬ 
nal vacuolation also shown. Merkel's fluid. Triple stain. 
Fig. 4. Cell showing telophasic chromosomes densely crowded at poles. 
Cell much shrunken. Cytoplasm appears poorly fixed. 
Flemming’s strong solution. Triple stain. 
Fig. 5. Telophasic chromosomes rather widely separated from one 
another. No cross anastomoses present. Chromosomes shown 
tend to be arranged in pairs. Merkel’s fluid. Iron-alum- 
haematoxylin stain. 
Fig. 6. Telophasic chromosomes, showing lack of cross anastomoses and 
irregular internal vacuolation. Merkel’s fluid. Triple stain. 
Fig. 7. Telophasic chromosomes, showing lack of cross anastomoses and 
still further internal vacuolation. Anastomosing vacuoles and 
unreticulate portions are shown. Merkel’s fluid. Triple 
stain. 
Fig. 8. Two daughter cells, showing nuclei in process of reconstruction. 
Chromosomes undergoing internal vacuolation. In the upper 
nucleus chromosomes are free from adjacent ones at polar 
ends but form lobes at the free ends. In the lower nucleus 
some chromosomes can be seen entirely free from one 
another, but their substance is rather widely distributed. 
Absence of cross anastomoses. Merkel’s fluid. Triple stain. 
