520 



THE BEGINNINGS OF LIFE. 



forming in close proximity to one another^ each of them 

 being still without any trace of an investing membrane " 

 and it so happened that a Euglena^ lying between them 

 where they approached each other most closely, bad partly 

 been included within each of the future ^eggs/ One-third 

 was decolourized on each side, so that this Euglena ac- 

 tually entered into the formation of each of the ^ eggs ' 

 whilst the middle third of its substance, including the 

 red eye-speck^ remained as bright as it had ever been! 

 The ^ eggs' of Euglena origin differed from those 

 produced from Chlorococcus by being not at all villous, 

 and by not possessing a double envelope* whilst they 

 diiFered from the gemm^ of almost similar size, sub- 



sequently produced 



the Hyd 



principally by 



more 



colour. The ^ gemmae/ in fact, not only have a lighter 

 and more evenly granular appearance when examined 

 by the microscope, but are also easily distinguishable by 

 the naked eye, owing to their white colour. The ^ eggs' 



origin seemed to undergo developmental 



of Euglena 



changes more rapidly than those derived from Chloro- 



ovoid egg, -^^' in breadth by -^\J' in length, with sharply defined 

 border and no remains of Eiiglense on its [upper] surface.' My avoca- 

 tions during the day have generally rendered it impossible for me to 

 carry out attempts at development satisfactorily. Moreover, the 

 changes ' in conditions ' which are necessitated by any such attempts have 

 generally been found, as above stated, to cheek or change the direction 

 of future development. Even in this ease, the egg-like body produced 

 was much smaller than u=ual. The first body observed— appearing as 

 a spherical mass— was probably a very large ' egg,' seen endwise. 



? 



pressing 



beautiful 



of 



a 



complex 



ah utterl 

 pesis, whi( 

 Dess the ori; 

 Bacteria, as 

 formation oJ 

 colloidal mo' 



What fat( 

 Rotifers? 1 



' Ii a few d; 



*tle have be, 

 *' pellicle be, 



ffn 



^^"'ttis thro 



r- *i" soon 



See 



P'25. 



