302 J. JACKSON CLAEKE. 



21. — A portion of one of the papillary processes of a coccidial tumour seen 

 in section, a. Young parasites with division of nuclei, b. Larger but still 

 not granular coccidia with dividing nuclei, c. Capillary vessels and basement 

 membrane. 



Fig. 22. — Section of a myxosporidial muscle-tumour of a barbel. From a 

 preparation made by Dr. L. Pfeiffer. x 1000 diams. 



Fig. 23. — Section of a sarcosporidial cyst from a sheep's oesophagus. From 

 a preparation made by Dr. L. Pfeiffer. x 1000 diams. 



Fig. 24. — Microsporidia in frog's muscle. From a preparation made by 

 Dr. L. Pfeiffer. x 1000 diams. 



