A protozoan, the 

 simplest living 

 animal organism 



The protozoan 

 divided. Each 

 one becomes two 





How Life Begins 



A wonderful motion -picture which shows 

 how microscopic cells multiply and how 

 butterflies and higher animals grow 



To photograph butterflies in the act of laying their 

 eggs and to explain the development of the life 

 that eventually emerges from the eggs, Mr. Stone 

 invented the special camera and glass here shown 



OF course you have seen on the screen those 

 wonderful pictures in which a budding rose 

 unfolds itself petal by petal, swells into 

 full bloom and then shrivels and dies — all in 

 five minutes. How is it thus possible photo- 

 graphically, to compress spring, summer and 

 autumn into a few hundred feet of film? The 

 pictures are obviously real — and yet how dramatic- 

 ally unreal is the ephemeral life that flourishes 

 and dies before your eyes! 



A motion-picture camera makes sixteen ex- 

 posures per second. The resultant pictures are 

 thrown upon the screen at the same rate. In- 

 stead of taking sixteen pictures per second, sup- 

 pose that one were taken every hour and suppose 

 further that the sixteen positives, ultimately ob- 

 tained, are run through the projecting machine 

 in a single second. Obviously, a process which 

 was photographed in sixteen hours would be re- 

 vealed on the screen in one second. 



Here we have the secret of the rapidly unfolding 

 and withering rose. An automatic camera took 

 a photograph of the flower two or three times a 

 day, but the final film obtained was projected on 

 the screen in a few minutes. The effect is as if 

 a miracle were being performed before our eyes. 



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Portion of the film 

 showing divided 

 protozoan's career 



