3O J. E. WODSEDALEK. 



at right angles to the right of the large plate, and spindle threads, 

 extending from them and convergingat a conspicuous centrosome, 

 could be plainly seen. On the other side some of these chromo- 

 somes seem to be connected by threads to the one pole of the 

 large spindle and some to the other. At the upper pole of the 

 large spindle is a group of eleven chromosomes with spindle 

 threads converging at a centrosome near the cell wall. There was 

 a slight indication of threads on the other side passing to the 

 upper centrosome of the large spindle, but these could not be 

 definitely made out since the spindle in question was at a some- 

 what oblique angle to the large spindle, and the threads on the 

 opposite side were obstructed from view by the group of eleven 

 chromosomes. The centrosomes in this cell are unusually large 

 and conspicuous. The large chrosome at the lower portion of the 

 main spindle is the accessory. 



Fig. 27 is apparently another attempt at a double spindle, 

 the small one at right angles to the large. There was no sign of 

 centrosomes. Fig. 28 is a polar view of a cell with two spindles. 

 In each case the small chromosomes are in the center of the 

 plate. Seventeen chromosomes form the plate in one spindle 

 and twenty-five in the other, making a total of forty-two. There 

 then should appear ten large chromosomes, including the acces- 

 sory in this cell. In the smaller spindle containing seventeen 

 chromosomes, four are undoubtedly bivalent, and in the large 

 spindle of twenty-five chromosomes, six should be larger than 

 the rest, which upon very careful examination, seems to be the 

 case, but some of the other chromosomes are also somewhat 

 larger than usual. This condition is possibly due to the fact that 

 decay is well under way in the cell and the chromosome may have 

 become distorted. 



Fig. 29 shows an excellent case of two spindles, one is larger 

 than the other and also contains the larger chromosomes. It is 

 probable that the large spindle is paternal in nature, and the 

 small one maternal. 



Fig. 30 shows an unusual freak with the upper part giving the 

 appearance of two closely applied spindles. At the opposite 

 end, however, the threads do not converge at two separate poles 

 nor at a single pole but remain loose. At first sight one gains the 



