68 



PROTOZOOLOGY 



spends positively to Feulgen's nucleal reaction which may indicate 

 the presence of thymonucleic acid or chromatin in this structure. 



The Golgi apparatus 



With the discovery of a wide distribution of the so-called Golgi 

 apparatus in metazoan cells, a number of protozoologists also re- 





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Fig. 24. Flagellar attachment in Euglenoidina (Hall and Jahn"). 

 a, Euglena deses, X2025; b, E. actis, X750; c, E. spirogyra, X720; d, 

 Menoiclium incurvum, X1550. 



ported a homologous structure from many protozoans. It seems im- 

 possible at present to indicate just exactly what the Golgi appara- 

 tus is, since the so-called Golgi techniques, the important ones of 

 which are based upon the assumption that the Golgi material is 



