334 



C. ISHIKAWA. 



Fig. 44. Arclioplasm and nucleus of spore-forming individual at about same 

 stage as that represented by fig. 13 ; the tAvo centrosomes plahily seen at side 

 of nucleus within arclioplasm. Killed with Flemming's stronger solution and stained 

 with acid-fachsin and methylen-blue. 



Fig. 45. Similar stage to above. Single centrosome surrounded l)y a clear 

 space and many fine fibres seen in the arclioplasm next to nucleus ; chromosomes 

 gathered up at pole of nucleus fachig arclioplasm. Killed with Flemmhig's stronger 

 fluid, and stained with acid-fuchsin and methylen-blue. 



Fig. 46. Similar stage to fig. 45. Here the arclioplasm lies at a lower 

 level than nucleus. Treated as above. 



Fig. 47. Nucleus of another individual at about same stage as above. Many 

 of the chromosomes showing very plainly longitudinal divisions into four rows of 

 microsomes. Treated as above. 



Fig. 48. Two spore-buds in division ; represented more highly magnified in 

 fig. 48 A and B. Chromosomes within poles of nuclei longitudinally divided already 

 at this stage ; many darkly-staining bodies within archoplasms, probably corres- 

 ponding to group of centrosomes observed by Heidenhein. Killed with Flemming's 

 stronger fluid, and stained with acid-fuchsin and methylen-blue. 



Fig. 49-51. Divisions of spore-buds ; centrosomes in many of them. Killed 

 with Flemming's stronger fluid, and stained with acid-fuchsin and methylen-blue. 



Fig. 52. Abnormal division of spore-bud into three daughter cells. Treated 

 as above. 



