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77/2 BEGINNINGS OF LIFE. 



519 



corpuscles— although the sharp limitation of the trans- 

 formative change was now even more remarkable. It 

 extended outwards for a certain distance only, so that 

 those portions of the Euglen^ which came within the 

 radius of the future ^ egg ' were decolourized and con- 

 verted into a sort of fawn-coloured substance, whilst 



Euglense 



of whatsoever 



outlying portions of the same 



size they might chance to be — still continued green and 



healthy-looking\ On one occasion I saw two large *^eggs' 



^ The first of these bodies was observed on January 5, 1872, and is 

 now in my possession as a microscopical specimen. At that time, and 

 whilst I was still quite unaware of its nature, the following rough entry 

 was made concerning it in mynote-book:— ' A large, brow^nish, egg-like 

 body, spherical and ^-g-" in diameter, imbedded in the midst of Euglen?e 

 and of a brownish granular matter. These circumferential Euglenae 

 blended into the egg-like body, so that several were seen, one-half of 

 which was colourless and the other still green ! On focussing through, 

 it [the egg-like mass] seemed to have the appearance of being made up 

 of a dense aggregation of decolourized Euglense containing colourless 

 granules. Although this brownish and somewhat refractive mass was 

 perfectly spherical, it was evident that no cyst-w^all existed.' And then 

 my impressions concerning the mass were thus stated ; — ' Metamorphic 

 influences seemed to extend for a certain distance all round from a 

 centre^so that, as above stated, the circumferential portion of the mass 

 was composed (apparently) of Euglenee which were partly decolourized, 

 whilst those parts beyond the radius of the sphere were still coloured 

 green.' Again, on February 20th, after I had become aware of the 

 developmental destiny of such a body — from having observed all the 



r 



stages imdergone by many specimens — one of them was found actually in 

 process of form.ation, concerning which the following notes M^ere made : 

 ' Light portion measuring jj^g " ; surrounding Euglenae obviously meta- 

 morphosing, and fusing with central granular mass.' The situation of 

 the body was carefully marked, and the portion of pellicle of which it 

 formed part was transferred to a w^atch-glass. When examined again 



after twenty-four hours, my notes say;— * It had become a distinctly 



tr. 



