■ . .■•-.■■■.•%\No" 



......vv-OJ v*/ 



.:■• /•••!;S=J \ \« 



-a.od. 





-a.as. 



FIGURE 35. FISSION STAGES OF NOCTII.UCA MTLTARIS ( AFTER CALKIXs). 



C.S., centrosome. m.f., mantle-fibers, n., nucleus, eh., chromo- 

 somes, ks., karyosomes. cy., cytoplasm, a.sp. "division center." 

 c.sp., central spindle, a.as., amphiaster. och., oxychromatin. 



391 



