5i6 



THE BEGINNINGS OF LIFE. 



existed, and which was fringed externally by adherent 

 and unmetamorphosed green corpuscles {b). In other 



I 



5 



Fig. 93. 



J 

 I 



Transformation of a mass of Chlorococcus Corpuscles into the so-called 



* winter-egg' oi Hydatina senta, (x 250.) 



a. Ovoid mass of bright-green Chlorococcus corpuscles, about ^ 



// 



2oo 



in 



long diameter. 



h. Such a mass after its transformation into a brown granular body, 

 without distinct bounding wall. (Should have been intermediate 

 in tint between a and c.) 



c. A similar body at a later stage, when a limiting envelope has made 



its appearance, upon which villous outgrowths had been produced. 



d. Later stage, constituting the so-called ' winter-egg ' of Hydatina. 



e. Hydatina senta which is produced from such a body — almost adult. 



specimens the first traces of a bounding membrane 

 appeared, though such bodies were still more or less 



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its 



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after 



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 a time t 



i end, so as 



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d tlie inner 

 mass 



(DibrfO mass 

 ilst it is s( 



its ciliary v 

 iii some di 

 ik cyst ir 

 tk cyst is ul 



men of Ejiaii 



Concerning 

 astounding as 



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''Jisformed i 



i '''' ^gain asc 

 , W'ons of th, 



: M tha 

 ^^°^n ego 



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