Spindle and Cytoplasm 79 



cases. Specificall)', this was called the achromatic sphere and the 

 pseudospindle. Related to this same structtire from ol)ser\ations 

 with neuroblasts is the hyaline globule.^" 



lliese bodies do not show polarity, their staining properties are 

 distinct from cytojjlasm. and their relationship to spindle material or 

 karyohniph is a good one. It was belie\ed that the c-])airs regularly 



Fig. 3.6 — Cell of Allium root treated with colchicine showing the spindle substance around 

 which chromosomes are grouped. Another amoeboid nucleus shows the influence of this 

 substance. (Photomicrograph made from slide of the A. P. Dustin Collection, Univer- 

 sity of Brussels. An unpublished photo similar to diagrams by Havas, Dustin, and Lits, 

 1937) 



associated around the pseudospindle, and that this structure accounted 

 for the cxjjloded metaphase. Indeed the chromosomes were distributed 

 bv this bod\, and the specific distrilnited c-mitosis was seemingly re- 

 lated to the pseudospindle, but no tiniher direct associations can be 

 made.-"' ^^' ''^ Different subjects tend to show different kinds of 

 material. Ihe clear area around chromosomes^'' and the lakelike 

 bodies of Arbada may all be related to these deformed spindle 

 materials. 



