ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
647 
exclusive one, and that the changes which are found in a dysenteric 
intestine are, in part at least, to be ascribed to the action of intestinal 
bacteria. The dysenteric bacillus described by Ogata was never en- 
countered by the author. 
Parasites in Sarcoma-Cells.* — Dr. Heinatz found in seven sarcomata 
intra-nuclear inclusions resembling corpuscles, which were round and 
having a diameter of from 2-5 //,. They stained deeply with nuclear 
stains, and contained in their interior one or more granules of a round 
or crescentiform shape. The author is inclined to regard the corpuscles 
as parasites. 
Parasites of Chronic Malaria. j— Prof. B. Danilewsky describes 
some appearances he has observed in malarious blood, especially in cases 
of chronic microbiosis : — (1) Pseudo-cysts in leucocytes. These are 
about 1/2-1/ 3 the size of the leucocyte; they contain numerous oscillat- 
ing granules ; their shape is unaltered during the pseudopodal extensions 
and retractions of the leucocyte. (2) Leucocytozoa. In certain greyish, 
finely-granular leucocytes two bodies are to be seen — one probably the 
shrivelled nucleus, the other a circular (or spherical ?) body with well- 
defined margin and homogeneous structure. (3) Unusually large Lave- 
rania ; these are 20-22 /x, or 2 J— 3 times longer than a red corpuscle, and 
4-6 jx broad. Within these large crescents is a collection of melanin 
granules. (4) Laverania, with secondary or extra corpuscles. These 
Laver anise are intra-cellular, 8-10 /x long and 3-4 /x broad, with central 
irregular collections of melanin granules. They are enclosed in a 
capsule, the remnant of the red corpuscle, while between the capsule and 
parasite lies a small dark spherule with sharp, plainly double contour. 
It appears to be quite free. 
* Wratsch, 1894, Nos. 8 and 9. See Centralbl. f. Bakteriol. u. Parasitenk., 
l te Abt., xviii. (1895) p. 18. 
t Centralbl. f. Bakteriol. u. Parasitenk., l te Abt., xviii. (1895) pp. 225-8. 
