//-£_ 



\ 



'.^" colour. 



t 



^l^d the in ' 



"^ invest,. 



Imost 



^ broaj t 



t 



lents were 



Pu^^clesintheJ 



7 







CO 



1*^ 



■-\ 



ht-sreen 



ley had proceed 



J 



• * 



origin some 



icath-like mateiii' 

 uted a kind ofcjS 

 )ther specimeis 



placed be 



ip chamber foft'' 



.jre 



move 



found to tf 



ment 



c 



I 



--' 'l 



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already reft"^; 

 of theiB betj'^ 



and, in^t^ 



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they 





:e 



as 



M 



THE BEGINNINGS OF LIFE. 



451 



their Euglenian matrices. The filarnents themselves^ 

 but for their being much more slender than usual, re- 



^^^^^edsp. ■ *' sembled and grew after the fashion of Vaucheria 



^^ir vc.r^,. . ^^ Dr. Gros also sneaks of the transformation o: 



1 



Dr. Gros also speaks of the transformation of speci- 

 mens of these worm-like Euglense into Conferva!. 

 Some of them produced Closteria and various animal 

 forms in the months of August and September, though 

 others did not become transformed till November and 

 December. Concerning these Dr. Gros says^:— ^Des 

 grandes Euglenes done (PI. L^ fig. 11-14) ont pris de 

 la nourriture et de la vesiculation (fig. 12) trainent une 

 vie languissante et se transformant en une tronc 

 (fig, 11) Confervien qui se constitue une Conferv 

 (fig. 13), susceptible de se developper ulterieurement^ 

 comme nous Tavons deja vu pour d'autres especes/ 



e 



some 



And in reference to another stock of Euglense, 

 of which had also given origin to Desmids^ Dr. Gros 

 says 3; — ^D'autres vesicules Eugleniennes prennent une 

 forme vege'tative Confervienne plus claire, et ces vege- 

 tations deviennent assez abondantes pour augmenter 

 la teinte verte de Teau.' 



We 



^ In a road-sicle ditch at Hendon, from ^vhich I frequently procured 

 supplies of Euglenoe, I found on several occasions, during the months of 

 January and February, that when the quantity of water became diminished 

 so as to leave the Euglenee just above the water-mark, beautiful patches 

 of Vaucheria speedily appeared in these situations. At other times Oscil- 

 latorige have been seen to develop in abundance under similar conditions. 



^ Loc. cit., pp. 33S and 318. 

 ® Loc. cit,, p, 302, 



* Appendix D, pp. lix-lxiii. 



Gg 3 



