388 SHANA D. KING AND J. BRONTE GATENBY 



5. No centrosome was identified — the Golgi elements are 

 probably attracted by some other body in the nucleus. 



6. Each daughter schizont receives a part of the Golgi 

 apparatus of the mother cell. 



7. The peculiar nucleolus (or karyosome) of the merozoite 

 (corps en barillet stage) always lies at one end of the 

 nucleus. The Golgi apparatus alwa3^s takes up its position 

 outside at the other end (PL 21, fig. 18). 



Bibliography. 



1. DobelL— " Life History of Adelea ovata ", ' Proc. Roy. Soc.', (B), 



Ixxix, p. 155, 1907. 



2. Minchin.— ' Introduction to Study of Protozoa ', Arnold, 1912. 



3. Hirschler. — " tJber Plasmastrukturen in den Tunicaten-, Spongien-, 



und Protozoenzellen ", ' Anat. Anz.', Bd. xlvii, 1914. 



4. Siedlecki.— " Etude cytologique et cycle evolutif de Adelea ovata ", 



' Annal. Instit. Pasteur ', 13, 1899. 



5. Gatenb^^ — ^Bolles Lee's ' Microtoniist's Vademecum', 8th edition, 



p. 292 et seq. 



6. King and Gatenby.— ' Nature ', March 192.3. 



DESCRIPTION OF PLATE 21. 



Lettering. 

 G, Golgi apparatus, gx, bodies possibly either Golgi apparatus modified 

 or derived from the Golgi apparatus, n, nucleus, n, nucleolus (karyosome). 

 Y, yolk-like bodies. 



Figs. 1, 3, 4, and 10. — Male gametocytes not containing a normal Golgi 

 apparatus. The granules gx, impregnate like the Golgi apparatus, but 

 resemble them neither in position nor morphology. 



Fig. 2. — The Golgi apparatus of a number of merozoites drawn free- 

 hand. 



Fig. o. — Young trophozoite just after separation of merozoites. 



Fig. 6. — Male gametocyte containing an excentric juxta-nuclear Golgi 

 apparatus, and also numbers of the granules gx, one near the Golgi 

 apparatus. 



Figs. 7 and 8. — Cells too large to be normal male gametocytes, but 

 showing what seems to be the degeneration of the Golgi apparatus. 



Fig. 9. — Shows yolky bodies in male gametocyte. 



Figs. 11, 12, 13. — Trophozoite (schizont) showing Golgi apparatus. 



