74 
Ataxia and weakness of legs, 1 case. 
Strabismus and diplopia, 6 cases. 
Nystagmus, 1 case. 
Disturbed vision, 1 case. 
Diminished vision, 1 case. 
Headache, 10 cases. 
Disturbed sleep, 3 cases. 
Fever, T cases. 
Vertigo, 2 cases. 
Difficult speech, 3 cases. 
Mental symptoms, T cases. 
Nasal pruritus, 3 cases. 
Formication of body, 2 cases. 
Numbness of lumbar region, 1 case. 
Nocturnal enuresis. 1 case. 
Cardiac palpitation, 2 cases. 
Shivering, grinding of teeth, biting of lips, 1 case. 
Of other phenomena not directly connected either with the digestive 
or nervous systems the following may be noted : 
Clnduria, 1 case (No. 87). The doubtful connection of Ilymtnolepis 
with this case has already been remarked above in the discussion of 
the case. 
Slight eosinophilia, 1 case (No. 82). So far as I have found, this 
case is the only one in which the results of a blood examination were 
reported. 
Paleness, 13 cases. 
Emaciation, 4 cases. 
With regard to the symptoms which have been enumerated it will 
be noticed that there are no essential peculiarities to distinguish them 
from the symptoms found with the larger tapeworms {Tdenici). In 
character the symptoms are similar in both instances, being remark- 
able chiefly on account of their variety and lack of uniformity. 
According to the manner in which the cases are selected, a variety 
of results regarding the frequency of S 3 unptoms may be obtained 
from a comparison of II. nana with other tapeworms. 
The cases of II. nana which showed severe nervous symptoms — 
taking into consideration all such cases wdthout regard to the proba- 
bilit}" that in man}’ of them the symptoms were due entirely to other 
causes than the presence of the parasite^ — form 45 per cent of the 49 
cases in which the presence or absence of symptoms was distinctly 
referred to, and 21 per cent of the entire number.^* Seeger’s table 
(see p. 66) gives the percentage of severe nervous symptoms occurring 
in 100 cases of tapeworm as 68. Seeger, however, in making up his 
statistics, apparently has used only such cases as exhibited definite 
f^See footnotes, p. 71. 
