^^^l 



' ^^cheri 



na. 



m 



^nt fro 



'°^s also 

 ' at the 

 tained 

 id 



coarsely.^ 



1^1 



Thi 



IS mass 



Si 



as to leave a •,; 

 Jrface and tks, 



(f)^. ItafteJ 

 s of sementat: 



^ 



t 



seen in 



.1. 



)OUt 



J 



« 



I 



I 



,t scen,notas^ 

 Though afef'J 



embryos m 



,ducei i» ^ 



nXi^ 





7i¥"^ BEGINNINGS OF LIFE 



531 







r^ --. 





^ 



Fig. 95. 



iition to the f 



arental relatioi| 



1 spores of \*Y Development of Nematoids from Spores of Vaucheria. (X 400.) 



especially wortSi 



uous 



to a 



stii 



r 



a. Half-decolourized spore with portion of tube attached — some of 



chlorophyll corpuscles colourless, and others still green. 

 6. Similar body, wholly decolourized and swollen, resolved into a mass 



containing fatty-looking particles and globules, 

 c. Similar body in which animalized mass has become finely granular 



and somewhat smaller. (This and last surrounded by adherent 



granular debris.) 

 <?. Showing early stage of segmentation of embryonic mass. 

 ^. The mass subsequently becomes resolved into a worm-like embryo, 



which soon exhibits its first very slow movements. 

 /. Form assumed by the active embryo (Diplogaster) just before it 



€^^ *" 



K* 



6' 



ruptures its cyst. 

 Egg subsequently laid (after about a month) by the adult worm. 



