FIG. 7. CELLS FROM THE MOUTH (ORAL EPITHELIUM) OF THE SALA- 

 MANDER, to show the phases of cell division or mitosis. The cells are not 

 represented in the living slate, but artificially preserved and coloured. In the 

 living cell there is no such marked contrast of colour between the protoplasm 

 and the nucleus as appears in these figures. After Sobotta. 



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