71 
The presence or absence of symptoms^' has been noted in more or 
less detail in 49 out of the 101 ^ cases, 
j Of the 49 cases, 3 (Nos. 54, 57, 89) showed no symptoms whateyer 
: which could be traced to II. nana. It is only yery remotely possible 
! that there was any connection between the presence of II. nana in 
|. cases 1 and 3 and the diseases mentioned in these two instances, yiz, 
I meningitis and anemia, fatal in both cases. In 9 other cases (Nos. 10, 
I 11, 13, 14, 15, 35, 53, 86, 101) the symptoms were only slight. In case 
35, although thousands of II. nana were present, there were no symp- 
j toms of any kind exhibited, with the exception of occasional slight 
I abdominal pains. Although seyeral hundred specimens, besides 
l| numerous Oxyurls were passed after successiye treatments in case No. 
I 53, the patient was health}^ in eyery respect and showed no symptoms 
! except an itching of the nose. In 4 cases (Nos. 6, 47, 8^, 97) the 
' seyerity of the symptoms is not defined (in Nos. 82 and 97, howeyer, 
! they were probably slight). The s}miptoms in the 31 cases remaining 
; are more or less seyere. Only 17 of them, howeyer (Nos. 7, 8, 32, 33, 
j 34, 36, 37, 38, 39, 41, 42, 43, 44, 49, 81, 94, 95), are marked by symp- 
toms in which the influence of Ilymenolejyis nana can be definitely 
I traced, either by the disappearance or improyement of the symptoms 
after the expulsion of II. nana in those cases in which there seemed 
to be no other parasites present, or, if present, few in number com- 
pared with II. oianay or by the correspondence between the reappear- 
ance of Ilymenolepis eggs in the feces after treatment, and the 
recurrence of symptoms. 
In 13 (Nos. 7*, 8, 32, 33, 34, 37, 38, 39, 42, 43, 49, 94, 95) of these 17 
cases, some disorder of the digestiye system was noted. The relatiye 
frequency of symptoms referable to the digestiye system is as follows: 
Bulimia or increased appetite, 3 cases (Nos. 7, 8, 39). 
Peryersion of appetite, 1 case (No. 95). 
Gastric dyspepsia and difficult digestion, 1 case (No. 38). 
Functional gastro-intestinal disorders, 1 case (No. 37). 
Frequent yomiting, 1 case (No. 49). 
Abdominal pain or paresthesia, 11 cases (Nos. 7, 8, 33, 34, 37, 38, 
39, 42, 43, 49, 94). In one of these cases (No. 38) there was a sensa- 
tion of crawling in the abdomen, and heat in the epigastrium; in 
another (No. 43) pain, and crawling and gnawing sensations; in another 
case (No. 42) pain and a sense of pressure; it was noted in one case 
«This is leaving out of consideration the symptoms in cases Nos. 51 and 52, not 
available to me on account of the Kussian text in which they were recorded, and 
also the symptoms which may have been mentioned by Yenuti (1895) in connection 
with his 23 cases, but his paper, unfortunately, is not at present accessible. 
^ The list of symptoms was compiled before the discovery of cases 102 to 106, which 
are therefore not included in the discussion. The ward records of these five cases 
showed, however, no symptoms which could be traced to the presence of the 
parasites. 
