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PLATE XX. 
Arrange men t of cysts in uterus of female Anguillula i continued): A-B, cysts at- 
ranged in bands reaching across to the walls of the uterus ; B-C, aggregation of cells 
into irregular masses within the uterus; C-D, aggregations of cells arranged in two 
rows in the uterus; D-E, cysts that have attained the normal size and become coated 
with a thin epidermis— greatly enlarged. (Original.) 
PLATE XXI. 
A changed arrangement of cysts within the uterus of the female Anguillula which 
often occurs — greatly enlarged. (Original.) 
