1925 Volume 39 Issue 467 Pages en291-en296
1. Nucleolar buds found on the achromatic thread disapear at the time of chromosome formation and seem to supply their substance for its formation.
2. In the postsynaptic stage there are two ring-, two dumb-bell-, and six rod-shaped bivalent chromosomes, each pair being united telosyndetically.
3. There is a true diakinetic stage. In this stage 5 paired granular gemini in almost equal size are seen, although they are variously shaped in the previous stages.
4. The haploid number of chromosomes is 10.
5. In the homoeotypic division two spindle axes are perpendicular, parallel, or inclined to each other.
6. The mode of formation of the partition-wall between the tetrad-cells is by the furrowing process and no trace of the cell plate is observed.
7. There is here also a coincidence between the telosyndesis and the furrowing process in the formation of the partition-wall of the tetrads.
8. There is a structure reminding us of a GOLGI apparatus in the tapteum cell of the present material, although it was fixed with FARMER′S fluid.