180 WARFARE IN THE HUMAN BODY 



views. Since it can hardly be supposed that this parasite 

 has reached its present perfect adaptation within the 

 period which has elapsed since the domestication of the 

 pig, which implies a settled or, certainly, less migratory 

 state of civilization, it follows that the cystic form of 

 Tcenia must have alternated with the adult form in the 

 one other form of life in which such a stage is possible, 

 that is to say, in man himself. As I have not applied myself 

 to the study of helminthology it was impossible for me to 

 say whether this view was sound or not, and as the 

 advocate of the hypothesis did not reprint the paper, I 

 had an application made to him for his considered opinion. 

 When this was not vouchsafed I requested information 

 from a well-known helminthologist, who replied that he 

 himself knew nothing of the subject, and therefore referred 

 me to another authority, who in his turn gave me the 

 name of yet another, who finally referred me to the first. 

 It seems that, whatever is known of these parasites, 

 their evolution has not yet been properly considered, 

 and it may yet appear that it proves the universal and 

 long-continued practice of anthropophagy. 



On recapitulating the arguments advanced, though 

 each one separately may appear unconvincing and even 

 capable of rebuttal, it seems that when viewed together 

 they amount to much more than might have been 

 expected. Even a partial enumeration of the points 

 discussed may suggest reasonable explanation of the 

 following difficulties : 



i. The classificatory system of relationship. 



2. The custom of avoidance and the sex-coldness 

 among brothers and sisters. 



3. The not uncommon modern phenomenon of 

 parental jealousy. 



