11 
ing structure, or is lined with a deposit of granular coagulum or 
tissue debris. 
Abundance of 'parasite. — In Doctor Gates’s letter of June 17 he 
states that his “ patient has thousands of ” these parasites. 
In the Japanese case a section of about 11 sq. cm. showed nearly 60 
capsules; in the most thickly infested portions of the thigh there 
was one capsule to every 20 sq. mm. of cut surface, or to every 100 
cub. mm. of infested tissue; this gives 1,000 capsules per 100 cub. 
cm. of tissue. It was estimated that there must have' been consider- 
ably over 10,000 capsules in the left thigh alone. 
Worms 'Without eapsules. — Scarely any of the worms Gates for- 
warded to me bore any remnant of the cyst. Very probably most of 
these specimens were originally encysted and were freed from their 
cyst by Doctor Gates before he forwarded them. 
Comparatively young, slender worms were found by Ijima free 
in the connective tissue — that is, not surrounded by a capsule. — 
Ijima, 1905. 
Movements of the worm . — Not having seen the worm alive, I can 
give no details regarding movements. 
Ijima reports that the living wmrms when taken from the patient 
showed slow movements of extension and contraction, but effecting 
little or no change in position; upon cooling the worms no longer 
exhibited such movements; in case of worms placed in salt solution 
motion could be revived up to a period of four hours if the parasites 
were slightly warmed. 
The head (narrow end) was the most motile, evaginating and 
inVaginating at the apex, in addition to shortening and extending; 
the terminal, but inconstant, depression in some cases reminded the 
observer of a terminal sucker, such as seen in the fish bothriocephalid 
C'yathocephalus. In addition to a motion as if feeling about, the 
head started a lively peristalsis from before backward; such com- 
bined movements would aid the worm in penetrating and moving 
through tissues. 
The broader parts of the body showed at most slow vermiform 
movements, with more or less constant indentation at the extreme 
hind end. 
The head . — Ijima states that the head of his parasite is devoid of 
any definitely formed or permanent organ of attachment. This holds 
true also for the worm found by Gates. In some few specimens a 
slight apical depression is observed, but as the material is preserved 
in alcohol this might possibly be either an artifact or a depression 
due to sudden contraction on the part of the worm. 
Ene'ysted icorms . — Gates writes that he found as many as 3 worms 
in one cyst. This condition is doubtless due, as Ijima explains also 
for his case, to the tendency of the worm to multiply by budding. . 
