■ ^omm 



On 



^ame 



) 



)tu 



Stocl; 



Oi 



nin 



gal 



As Dr. 



souvent i 

 un dtv 



inaj. 



^^ jumelle s. 



^ V 



C 



L 



fs circoii. 



■^) ^e quantitE 



imponderables, 

 Jction, si 



a Tinsufficaiict 



irms of Clki 



)a are reg 



; of existeoc 

 ;he condiW 

 to their mof' 





I 



^, of watclii"? 

 ^ pass 

 )St fre 



durii? , 



m 



-am^ 



[St its c 



otiofl- 



TX^^ BEGINNINGS OF LIFE 



457 



phyll vesicles enlarged and assumed a very bright-green 

 colour. Its outer surface underwent no condensation. 

 On the contrary^ it seemed gradually to become more 

 plastic^ whilst it also became decolourized^ and studded 

 with a number of small ovoid, colourless, and refractive 

 particles. The large bright-green chlorophyll vesicles 

 had by this time become closely aggregated and even 

 partially fused into one mass, which slowly underwent 

 decolourization from periphery to centre. The mole- 

 cular changes going on in the superficial colourless 

 portions seemed to be capable of effecting the direct 

 transformation of the chlorophyll vesicles into colour- 

 less chlorophyll, since the central mass gradually became 

 smaller and smaller, without any of the usual inter- 



mediate shades of colour revealing themselves. 



And 



by the time the green mass had half disappeared, the 



colourless peripheral portions of the transforming organ- 

 ism were exhibiting distinct amoeboid contractions and 

 alterations in shape. The ovoid refractive particles 



I 



also soon began to disappear, so that when the central 

 portions of chlorophyll had been completely decolourized, 

 the mass was converted into a rather sluggish, finely- 

 granular Amoeba, which developed vacuoles in its in- 

 terior, became more and more active, and at the same 

 time began to take food into its substance and increase 

 in size in the ordinary manner i. 



* Dr. Gros says :— * Chaque vesicule, ici conime ailleurs qui est des- 

 tinee a reproduire iin n^esconien ou Oxytrique, et qui n'a pas encore 

 assez de matiere en soi, est comme un ceuf, qui passe par la forme amce- 



