432 Griffiths.—On Glaucocystis Nostochinearum , Itzigsohn. 
Fig. 7. Cell with nucleus completely divided. 
Fig. 8. Cell with divided nucleus, one half of which has a process, x 857. In the cytoplasm 
are * strain lines % radiating from the two half-nuclei. 
Fig. 9. Cell with divided nucleus, each half with processes, x 857. 
Fig. 10. Mother-cell with two daughter-cells, x 545. 
Fig. 11. Cell with nucleus divided directly into four, x 857. 
Fig. 12. Unhealthy cell with phycocyanin diffused in cell-sap. x 857 approx. The protoplasm 
has divided into apparently seven, but possibly eight, portions. The nucleus has probably divided 
into eight in this case. 
Fig. 13. Mother-cell with four daughter-cells, x 545. 
Fig. 14. Mother-cell with eight daughter-cells, x 545. 
Fig. 15. Mother-cell with four daughter-cells, x 545. Each daughter-cell has undergone 
subsequent nuclear division, but cytoplasmic division has not yet taken place. Several cases of two 
daughter-cells were observed in which a second nuclear division was taking place. 
