MORPHOLOGY 



69 



osmiophile and argentophile, and possesses a strong affinity to 

 neutral red, are not specific and the results obtained by using the 

 same method often vary a great deal. Some of the examples of the 

 Golgi apparatus reported from Protozoa are summarized in Table 2, 

 It appears thus that the Golgi bodies occurring in Protozoa are 

 small osmiophilic granules or larger spherules which are composed 

 of osmiophile cortical and osmiophobe central substances. Fre- 



93.0 o 





Fig. 25. The Golgi bodies in Amoeba yroteus (Brown). 



quently the cortical layer is of unequal thickness, and, therefore, 

 crescentic forms appear. Ringform apparatus was noted in Chilo- 

 donella and Dogielella by Nassonov and network-like forms were ob- 

 served by Brown in Pyrsonympha and Dinenympha. The Golgi ap- 

 paratus of Protozoa as well as of Metazoa, appears to be composed 

 of a lipoidal material in combination with protein substance. 



In line with the suggestion made for the metazoan cell, the Golgi 

 apparatus of Protozoa is considered as having something to do with 

 secretion or excretion. Nassonov considers that osmiophilic lipoidal 

 substance, which he observed in the vicinity of the walls of the 

 contractile vacuole and its collecting canals in many ciliates and 

 flagellates, is homologous with the metazoan Golgi apparatus and 

 secretes the fluid waste material into the vacuole from which it is 

 excreted to the exterior. According to Brown, there is no blackening 

 by osmic impregnation of the contractile vacuole in Amoeba proteus, 



