17 



Kitt describes and gives drawings of protozoa, or "Molluscum-Koeper," as 

 he describes them. They are irregular bodies which stain intensively, and were 

 found in the cells of an epithelioma. 



We observed the same bodies in the epithelial cells under the pseudo-mem- 

 brane in the mouth of fowl 28, and they are shown in Fig. 5. Unstained, they 

 were homogeneous, clear and greenish in color. They were stained dark blue 

 with haemotoxylin. In those parts of the epithelium in which these bodies 

 were absent, the cell nuclei were homogeneous,, or finely granular, and very 

 much swollen. The clinical form of this case of the disease was striking be- 

 cause the membrane always formed again with extraordinary obstinacy, and 

 in some cases grew right into the bone tissue ot the left lower jaw. Similar 

 bodies were present in the exudation of bird 26, and inoculated fowl 29. 



FU^. It). — From the eyelid of fowl No. 29 

 structures resembling Kitt's " Mollu- 

 scum t)o<iies.'" 



Fig. 17. — From the serretion and exudation from 

 the eyelids of hens u 35, 36 and 39. Swollen 

 epithelial nuclei are 16 u in diameter. 



As appears from the drawings, the most varied protozoa-like bodies were 

 present in the secretions and exudations, of naturally diseased fowls and of 

 those inoculated with bacterial cultures. 



In conclusion, we may state that most of the above described bodies were 

 probably different products of degeneration of the epithelium and endothelium. 

 Some must be regarded as foreign bodies and protozoa accidentally present in 

 the exudations. 



Kitt's molluscum bodies, in the epithelium of fowl 28, resemble the cell 



enclosures frequently found in Carcinoma, which are claimed by some as being 



the causal organism. 



Bacteria. 



In all the pathological exudations and secretions, bacteria were present. 

 Cultures in gelatine and agar plates and aerobic and anaerobic cultures in 

 bouillon were usually made. In some cases, the material was only examined 

 microscopically. In six cases of diseased fowls (29, 30, 33, 34, 35 and 36), B. 

 pyocyaneus in pure cultures grew from spleen, liver, kidneys and blood. In all 

 other cases, either some colonies of B. coli grew from cultures made from 

 these organs, or the cultures remained sterile. 



Frm the exudations and secretions, many dififerent micro-organisms de- 

 veloped, and occasionally, yeasts and fungi were present. The colon bacillus 



2 Bull. 132 



