3i5 
parasites, rounded and attached to one another as in fig. 23, were seen 
in this situation. These also became motionless. 
Four days later in the same preparation these small parasites 
were still very active ; no change having occurred in them, with the 
exception of the production of a bulb found at the flagellar end of the 
herpetomonas-like forms 6 (fig. 24). Five days later many small 
parasites were rounded and granular, but were still moving. Six days 
