ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
315 
Coccidia of Passeres.* — Herr Nils Sjobring discusses tbe occurrence 
of Coccidia in birds, to which comparatively little attention has been 
directed. He describes in particular Isospora passerum nov. nom., and 
has further notes on the disease in pheasants caused by Coccidium ovi- 
forme, and tbe presence of Flagellate parasites like Trypanosoma in the 
blood of many Passerine birds. 
Presence of Protozoa in the Blood and Organs of Leukhaemic 
Persons.')’ — Prof. M. Lowit has observed, in the blood drawn from the 
finger of cases of mixed leukhaemia, appearances indicative of the pre- 
sence of Protozoa. The parasites, though chiefly affecting leucocytes, 
in which their growth and development take place, are also found free 
in the blood. The parasites belong to the Sporozoa ; but whether they 
deserve the title of Hsemamoeba leuJchsemise is not at present certain. 
In some of the cases a resting encysted form was found in the blood 
and tissues after death. The parasite was not discovered in cases of 
pure lymphatic leukhaemia. The author’s present communication is 
curt and preliminary. 
Pathogenic Protozoa of Foot and Mouth Disease.^ — Hr. G. P. 
Piana and Hr. A. Fiorentini describe a pathogenic protozoon, Protamoeba 
aphthogenes, which is constantly present in cases of epizootic aphthae. 
The microbe may present itself as a hyaline or finely granular body 
with or without vacuoles or a nucleus. Sometimes the body shows a 
double contour ; at other times it is seen to contain corpuscles. The 
bacteria present in the exudation of the vesicles are not killed by 
heating for 15 minutes at a temperature of 50-52°, while the aphthous 
virus loses its activity. As a nucleus is not constantly present, this 
organism is classed with Monera. Like the primitive Protamoebae, they 
progress by lobate extension rather than by pseudopodia, and multiply, 
like Protomyxa aurantiaca, by endogenous spores. 
Amoeboid Bodies in the Blood of Vaccinated Monkeys and Children 
and in the Blood of cases of Variola. §— Hr. W. Reed claims that he 
has confirmed Pfeiffer’s observation that small granular amoeboid bodies 
are present in the blood of vaccinated children and calves, and in the 
blood from cases of variola during the stage of fever. Granular amoeboid 
bodies having a diameter of about one-third that of a red corpuscle are 
present also in the blood of the monkey during the active stage of vac- 
cinia, and disappear with the decline of the local inflammation. A body 
of like appearance, granulation, and size, may occasionally be found in 
the normal blood of monkeys and children. Pale amoeboid bodies con- 
taining a few dark pigment-like granules are present in the blood from 
cases of variola, and in the blood of the variolated monkey. Bodies of 
like appearance may occasionally be found in the blood of vaccinated 
children and monkeys. 
* Centralbl. Bakt. u. Par., xxii. (1897) pp. 675-84 (8 figs.). 
t Op. cit., l te Abt., xxiii. (1898) p. 20G. X Tom. cit., pp. 323-8 (1 pi.). 
§ Jouru. Exper. Me'd., ii. (1897) pp. 515-27 (2 pis.). 
