PLATE XXV                [ Ind. Jour. Vety. Sci. & Anim. Husb., Vol. VIII Part IV

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Spleen Lahore Canine Fever X 875.
           Heidenhain's Iron Haematoxylin and cosin.

V.S. .. .. .. ..

venous sinus

M. .. .. .. ..

macrophages in red pulp of spleen

L. .. .. .. ..

littoral cell of venous sinus

P. .. .. .. ..

polyblast cell derived from reticulum

H. .. .. .. ..

haemocytoblast

Note the intense polyblastic (reticular cell) hyperplasia with macrophage development. Haemocy-
toblasts are numerous in the red pulp and venous sinuses