THE HUMAN AND THE POND AMCEJELE. 



65 



then squeeze out -a drop of blood, you can see in it all 

 that I shall describe. Placing this drop of blood under 

 the microscope, you will find a whole cluster of little 

 reddish-looking bodies (Fig. 58), and among these a 



Fig. 58. 



Red Cell, seen 

 on its Edge. 



Colorless Cell. 



Blood-Cells, colored and colorless. 



number of larger, clear or transparent bodies, which 

 look like splashes of light-colored jelly (Fig. 58). It is 

 about these jelly-like bodies I am going to tell you. If 

 you keep your eye on one of them, you will see that it 

 continually changes its form, and that it has a slow, 

 crawling kind of motion. And, if you try to make a 

 drawing of it on paper at different times, your picture 

 will never be twice alike (Figs. 59, 60). It puts out 

 something from one side which looks like a foot ; then 

 it will draw in this foot- and put out another at the 

 other side, as if trying to find a soft place to walk upon. 

 Sometimes it puts out several of these at one time. 



