354 
LESTER W. SHARP 
Fig. 
3- 
Later stage: daughter chromosomes passing to poles. 
Fig. 
4- 
Late anaphase: chromosomes massing at poles. 
Fig. 
5- 
Telophase: vacuoles appearing within chromosomes; anastomoses present. 
Fig. 
6. 
Slightly later stage; note arrangement of vacuoles. 
Fig. 
7- 
Two telophase chromosomes, showing irregularity of vacuolation. 
Fig. 
8. 
Telophase, showing polarized arrangement of chromosomes (camera lucida 
sketch). 
Fig. 
9- 
Cross sections of telophase chromosomes, showing the same. 
Fig. 
10. 
Later telophase: nucleus larger and nucleoli present. 
Fig. 
11. 
Late telophase: limits of chromosomes still visible. 
Fig. 
12. 
Interphase or resting stage. 
Plate XXIII 
Fig. 
13- 
Resting stage in which telophasic changes have gone further. 
Fig. 
14. 
Early prophase: reticulum breaking up into constituent chromosomes. 
Fig. 
15- 
Later stage: chromosomes further separated and more condensed. 
Fig. 
16. 
Cross sections of chromosomes like those of figure 15. 
Fig. 
17. 
Prophase nucleus with most of its chromosomes in single thread stage. 
Fig. 
18. 
Chromosomes in single thread stage; development of this condition from 
reticulate stage shown at a. 
Fig. 
19. 
Splitting of single threads. 
Figs 
20 
21. Later stages: vacuoles and openings more numerous; chromosomes 
thicker. 
Fig. 
22. 
Prophase nucleus with some chromosomes partially and some completely 
split. 
Fig. 
23- 
Later' stage: chromosomes heavier but not completely split. 
Fig. 
24. 
Late prophase: chromosomes swollen and split obscured; nuclear membrane 
has disappeared and spindle is developing. 
