Some Questions which they Suggest. 3 



illustrations which follow, he will by his eye get a general 

 notion of the kind of thing about which we are going to 

 talk. 



LIFE-HISTORY. We propose in the first place to sketch 

 the life-history of one of these organisms as an example of 



FIG. 1. Badhamia utricularis, showing Sporangia. 



all, and then to retrace our steps and dwell a little more 

 in detail on points of interest which emerge in the con- 

 sideration of the several stages of its existence. 



If our reader will look at Fig. 1, he will see depicted an 

 organism consisting of a number of bodies somewhat like 



B 2 



