THE DAWN OF LIFE. 



FIG. 14. Entosolenia. 

 A one-celled Foraminifer. Magnified as a transparent object. 



FIG. 15. Biloculina. 

 A many-chambered Foraminifer. Magnified as a transparent tfbject. 



FIG. 16. Polystomella. 

 A spiral Foraminifer. Magnified as an opaque object. 



