19221 



Kofoid-Swezy: Mitosis in Endaniochn (lijsfiitcriac 



303 



We liave also found diviiliiiy; human cells in the lij-pertroi)lii('(l 

 cervical gland excised from a ease of Ilodgkin's disease. We have 

 not found human cells of anj' kind dividing in the lesions of the bone. 

 A comparison of the two types of division clearly indicates that the 



■X 



V-* 





Fig. 6 



Fig. 7 



Fig. 3. Endamoeha dyscnteriae from losious in bone marrow iu tlie lieail of 

 tlie femur in Ely's case 187 of the second, uon-bacillary type of arthritis. Note 

 spherical vesicular nucleus ■with peripheral chromatin, central karyosome, and 

 spoke radiations. 



Fig. 4. Same with nucleus in prophase with periplieral chromatin in strands 

 (chromosomes?), some of them split. 



Fig. 5. Binucleate amoeba resulting from mitosis. Halo around central 

 karyosome. 



Fig. 6. Endamoeha dysenteriae in early anaphase. Note small number of 

 chromosomes, probably si.x, intact nuclear membrane and intradesmose joining 

 centrosomes at poles. 



Fig. 7. Late anapliase with distinct intradesmose. All figures X 2.300 

 diameters, from sections of the excised head of the femur in Ely's case 187. 



