PLATE VIII 



VARIOUS ORGANISMS OF DOUBTFUL POSITION 



FIGUEE 23. Possibly a heliozocm (Acanthocystis ?). The spines are few and of one 

 kind only, clavate in form. Plentiful in Coast Lake. 



FIGURE 24. Oval bodies of a dingy purple colour, always occurring in clusters, as 

 many as eight together. They always included many round pellet-like bodies. 



FIGUBE 25. Apparently a bit of vegetable tissue. Such a plant must have been 

 introduced, but if so it must have been previous to our expedition, as it was 

 found in the ice of a lake which was frozen when we arrived. 



FIGURE 26. An elliptical hyaline body, made up of eight rings. 



FIGURE 27a. A brown discoid body with finely reticulate surface. One pole is pro- 

 duced with a little point. There is no opening of any kind. Fig. 27b shows a 

 bit of the reticulate surface more highly magnified. 



FIGURE 28. Round vegetable cells, in irregular clusters and strings. A few were 

 filled with green contents, like two of those figured ; most had a little shrivelled 

 dark mass as in four of the cells figured ; the empty cells were open, as shown 

 in the two cells at the ends of the series. 



