1220 Wisconsin Academy of Sciences, Arts, and Letters. 
Fig. lie. Groups of nuclei showing conditions before and after nuclear 
fusions. 
Figs. 11 d and e. Crystalloids. 
Fig. 12. Zonation at time of formation of second zygospore wall. 
Fig. 12a. Nuclei at this stage. 
Fig. 12b. Disorganizing nuclei. 
Plate III. 
*. 
Fig. 13. Zonation at time of formation of oil bodies. 
Fig. 14. Showing disorganizing nuclei and aggregation of irregular 
masses resulting. Shows also the two walls of the zygospore and 
a small portion of the old gametophore wall. 
Figs. 14a, b. Appearance of nuclei and disorganizing nuclei at this stage. 
Fig. 14c. Irregular masses formed by coalescence of disorganizing nuclei. 
Fig. 15. Appearance of reticulated oil plastids. 
Fig. 16. Large oil plastid and deep-staining area of disorganizing nuclei. 
Fig. 17. Mature zygospore showing large alveolated nucleo-protein mass 
which results from the disorganized nuclei. 
Fig. 17a. Appearance of a portion of the nucleo-protein mass under 
higher magnification. 
Fig. 17 b. Nuclei of the mature zygospore, much reduced in number. 
