Leukemia of the Fowl. 33 
14. Hirscureip, H., and Jacosy, M.: Uebertragungsversuche mit 
Hiihnerleukimie. Zischr. f. klin. Med., 1910, LXIX, 107- 
120. 
15. BurckHarpt, J.L.: (Beider 82. Versammlung Deutscher Natur- 
forscher und Aerzte zu Konigsberg.) Ztschr. f. Immunitits- 
forsch. u. exper. Therap., 1910, Theil 2, 810-811. 
16. ———— Ueber das Blutbild bei Hiihnertuberkulose und dessen 
Beziehungen zur sogenannten Hiihnerleukémie, nebst Bemer- 
kungen tiber das normale Hiihnerblut. Zischr. f. Immunitats- 
forsch. u. exper. Therap. 1912, XIV, 544-604. 
17. HirscuFetp, H., and Jacosy, M.: Uebertragbare Hiihnerleukimie 
und ihre Unabhangigkeit von der Hiihnertuberculose. Ztschr. 
f. klin. Med., 1912, LXXV, 501-505. 
18. EtterMANN, V: Undersggeler over Hgnseleukaemiens Virus. 
Urgesk. £. Laeger, 1913, LXXV, 1685-1691. 
Untersuchungen tiber das Virus der Hiihnerleukimie. 
Zischr. f. klin. Med., 1914, LXXIX, 43-48. 
19. 
EXPLANATION OF FIGURES. 
Fie. 1—Normal blood of the fowl. Wilson’s stain. Zeiss objective 1/12, 
eye-piece No. 3. Composite picture. (a) Normocytes. (b) Blood plate- 
lets. (c) Polymorphonuclear leucocyte with eosinophilic rods. (d) Poly- 
morphonuclear leucocyte with eosinophilic granules. (e, e’) Lymphocytes 
(small and large). (f) Large mononuclear cell. (g) Mast cell. 
Fic. 2.—Leukemic blood of the fowl. Wilson’s stain. Zeiss objective 
1/12, eye-piece No. 3. Composite picture. (@) Normal normocytes. (0b) 
Normocytes showing anisocytosis, poikilocytosis, polychromatophilia, 
with swelling of nucleus and separation of its chromatin. (c) Normoblast. 
(@) Megaloblast. (e) Mitoses of erythrocytes; all stages from monaster 
to complete division of nucleus. (f) Blood platelets; both cell and nucleus 
increased in size; increase in size with two nuclei. (g) Polymorphonu- 
clear leucocyte with eosinophilic rods. (h) Polymorphonuclear leucocyte 
with eosinophilic granules. (i) Lymphocyte. (j) Large mononuclear 
cell; same size and larger than normal with both nucleus and cytoplasm 
paler. (k) Mitoses of large mononuclear cell; all stages, from monaster 
to complete separation of nucleus. (7) Mast cell. (m) Mononuclear 
myelocyte with eosinophilic granules. (n) Cytoplasmatic masses without 
nuclei. 
Fie. 3.—Cervical lymph-glands of the fowl; normal and leukemic. Actual 
size and X 2. Note the great increase in size; replacement of fat by the 
greatly swollen parenchymatous lobules. 
Fig. 4.—Normal fowl with organs in situ. Weight, 1750 gm. Note the 
well-nourished condition of the body; the abundance of fat, subcutaneously, 
