/ 



2 20 



THE BEGINNINGS OF LIFE. 



On the ninth day the pellicle began to assume a 

 brownish colour on the surface, owing to the enormous 



/ 



^ 







77/ 



JAP ' ^ t -^ & f^-^/^.w (*»«^ * 







Fig. 58. 



Phases in the Life-history of Monads and AmoebDe. ( x 1670.) 



a, a. Monads in different stages of growth. 



b, 6. Similar Monads which have lost or retracted their flagella. 



c, c. Monads about to be transformed into Amoebas. 



d, d. Resulting Amoebae in active and motionless stages, 

 ^9 /' §■? ^' Stages by which motionless Amoebse become encysted. 

 /, k, I, m. Stages by which other Amcebse become resolved into Bacteria. 



development of minute, brown fungus-germs ^ Portions 

 of the pellicle were also separating and beginning to 

 sink, whilst many of the spherical Amoebae were under- 

 going changes destined to result in encystment. 



^ Very similar to those represented in Fig. 59, e. 



^ became 

 whole I 





the 



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-fk 



it was e* 

 xce it looked 



cond 



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loplasnij this 

 oently tJi 



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- 'Urface of th 



