T0 



42P 



THE BEGINNINGS OF LIFE. 



I 



Desmids^ Diatoms, or algoid corpuscles may be due to 

 the growth of almost invisible germs derived from 

 previously-existing similar organisms, one is bound to 

 state on the other hand that such germs are never 

 recognizable in the situations upon which the out- 

 growths subsequently appear, and that the postulation 

 of their existence is an assumption based upon no inde- 

 pendent evidence. 



What is at present known concerning the modes of 

 reproduction of Desmids and Diatoms^, is wholly inade- 

 quate to account for their sudden appearance in great 

 numbers, in situations where they did not previously 

 exist. And in the face of the actual transformations 

 which have now been witnessed by independent ob- 

 servers, whereby algoid or euglenian corpuscles are bodily 

 converted into Diatoms or Desmids, it is rendered all 

 the more probable that the bud-like method of origin is 

 as independent of pre-existing Desmid or Diatom as it 



\ 



seems to be. 



pre-existing corpuscles of a different nature into such 



But concerning the transformations of 



more 



L 



On other occasions certain of the Protococcus-like 

 corpuscles which are so frequently given off from many 

 Alg£e may, instead of multiplying after the fashion of 

 ConfervEe, increase in size and gradually exhibit an 

 animal-like activity, whilst still retaining their green 

 colour. They thus become converted into Astasise and 



^ See Pritcha.rd's ' Infusoria,' 4th ed., pp. 11 and 58. 



m of Euglenz fr 



I Unaltered Cells of 



i,i. Separation of the C 



(f. Wmdualized 

 1' Simila 



mac. 



r organisms 



wthifl a dilated 

 dissepiments. 



seen by Mr. ( 



f certain filar 



Menii 



^0 Of , 



H-^of, 



iQt 



erior. 



