80 
C. H. MARTIN AND MURIEL ROBERTSON. 
Fig. 28. — Late stage division. A third free flagellum is growing out 
as a short thick rod in one of the daughter individuals. 
Fig. 29. — Late stage division, probably longitudinal. 
Fig. 30. — Late stage division. 
PLATE 12. 
Figs. 31, 32. — Trichomonas gallinarum. 
Fig. 31.— Late stage of the division of Trichomonas gallinarum, 
showing the form with axostyle. 
Fig. 32. — Late stage of the division of the form of Trichomonas 
gallinarum, showing the outgrowth of the fourth flagellum in each 
of the daughter individuals. 
Figs. 33-44. — T. Ebert hi. 
Fig. 33. — Active Trichomonas Eberthi. Normal form, with 
three free flagella and membrane flagellum. 
Fig. 34. — Trichomonas Eberthi. Form with three free flagella 
and a fourth flagellum just splitting off from the membrane flagellum. 
Fig. 35. — Trichomonas Eberthi. Form with four free flagella. 
Figs. 36-38. — Early stages in division, Trichomonas Eberthi. 
Fig. 39. — Late stage in division. The chromatin of the nucleus is 
condensed into eight masses ; two new flagella have been formed. 
Fig. 40. — Still later stage of division. The chromatin masses have 
now associated to form four dark masses. The new membrane 
flagellum is growing out along the new line. 
Fig. 41. — Still later stage. The nuclei have divided, though the 
axostyles are not formed. 
Fig. 42. — Late stage division, showing axostyles and divided nuclei. 
Figs. 43,44. — Still later stages in the division of Trichomonas 
Eberthi . 
PLATE 13. 
Figs. 45-52. — Trichomonas Eberthi. 
Fig. 45. — A flagellate resting stage of Trichomonas Eberthi. 
Fig. 46. — Trichomonas Eberthi. Form with membrane, but 
without free flagella. 
Fig. 47. — Trichomonas Eberthi. Form with membrane and 
axostyle, but no free flagella. 
Fig. 48. — Trichomonas Eberthi. Form developing free flagella. 
