50 Drs Fantham and Porter, Some Insect Flagellates, etc. 
Patton, W. 8. (1907). “The Development of the Leishman-Donova 
Parasite in Cimex rotundatus. Second report.” Sci. Mem. Govt. | 
India, No. 31. 
Porter, A. (1909). “The Life-cycle of Herpetomonas Juculum ( (Léger), 
parasitic in the Alimentary Tract of Vepa cinerea,’ Parasitology, 
ll, pp. 367391, | Plate. 
Porter, A. (1911). “The Structure and Life History of Crithidia | 
pulicis, n. sp., parasitic in the Alimentary Tract of the Human 
Flea, Pulex wrritans.” Parasitology, iv, pp. 237—254, 1 Plate. 
Swinere, L. D. (1911). “The Transmission of Trypanosoma lewisi — 
by rat-fleas (Ceratophyllus sp. and Pulex sp.), with short deserip- 
tions of three new Herpetomonads.” Journ. Infect. Diseases, vim, | 
pp. 125—146. 
EXPLANATION OF PLATE J. 
All figures were outlined with an Abbé-Zeiss camera lucida, using | 
a 2mm. apochromatic (Zeiss) objective and compensating ocular 8, 
The magnification is, in all cases, approximately 1300 diameters. 
Fig. 1. Oval, non-flagellate form of Herpetomonas Jaculea From | 
blood on mouse. 
Fig. 2. Oval form of H. jaculum, nucleus and plepharonie in 
contact. From bone-marrow of mouse. 
Fig. 3. Rounded form with karyosomatic nucleus. From spleen. 
Fig. 4. Typical, oval, leishmaniform element. From liver. 
Fig. 5. Stout, elongating form. From bone-marrow. 
Fig. 6 
bone-marrow preparations respectively. 
Fig. 9. Young flagellate with round blepharoplast. From lung. 
Fig. 10. Flagellate with flagellum leaving the body obliquely. 
From bone-marrow. 
Fig. 11. Herpetomonas with karyosomatic nucleus, and a number 
of chromatoid granules present. From bone-marrow. 
Fig. 12. Larger flagellate with bar-like blepharoplast and basal — 
granule present. From spleen. 
Fig. 13. Similar flagellate with flagellum leaving the body very — 
obliquely. From liver. 
Fig. 14. Herpetomonad with Eom at granules. From spleen. 
Fig. 15. A group of three liver cells of mouse with one Herpeto- — 
monas jaculum lying between them. 
Fig. 16. Somewhat pointed flagellate, with evenly distributed j 
nWelene chromatin. Small basal granule at base of flagellum. From | 
the liver. 
Fig. 17. Stout form with chromatoid granules. From liver. 
Fig. 18. Slender, elongate flagellate. iron liver. 
Fig. 19. Early stage in division. The blepharoplast has divided 
into two, and splitting of the flagellum has commenced. From bone- 
marrow. 
Fig. 20. Non-flagellate form in a leucocyte. Note the position of 
its blepharoplast. From circulating blood. 
Slender, elongating form, root of flagellum seen. From lung. 
Figs. 7, 8. Dividing, non-flagellate forms. From blood and from | 
