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~ showing conclusively that the ova developeing the disease had been 
planted in the human frame in other lands. People who made the 
charges against sewage farms did not know anything about the 
management of them, and described them in a manner contrary to 
fact. They supposed that the ova of entozoa would be carried on 
to the land, applied to the crops, and then consumed as ova by 
the cattle upon the farm. This idea showed at once their want of 
knowledge as to what sewage farming meant. No such contamina- 
tion could take place, except by accident, such as might happen in 
anybody’s kitchen when meat which might perchance find its way 
into the cook’s hands with trichina spiralis, or other parasites in it, 
if she did not cook it properly, or it was eaten raw, and disease 
was thus propagated. If they cooked their meat properly no evil 
could result ; let their farm be managed properly and no such 
danger as was indicated in Mr. Ashby’s paper as likely to arise, 
could so arise. The possibility of such accident was to be guarded 
against, and was no sound argument against a sewage farm. 
There was another point that he would like to allude to, viz., the 
destination of the millions of ova which undoubtedly did find 
their way to Beddington. He had often searched for them years 
ago at the outfall, but never found them. He would throw out, as 
a hint to members of the Club, that a good work might be done 
in solving the question of developement by following out a point 
which he had not hitherto found time to do. He had an idea that 
the ova of entozoa placed in other channels, in other conditions as 
to moisture and as to temperature, might develope into some other 
form than that of parasites. He had found the ova of entozoa, 
but in every running stream exposed to the air and which received 
human sewage, he had never failed to find the blood-red worm, the 
‘‘ Naid,” waving its body about in the flowing stream. It was 
contrary to received opinion that such a developement should take 
place, but whence the ‘‘ Naid,” and where were the parasitic ova _ 
of the entozoa? The one is never found ; the other is plentiful. 
He did not think Mr. Ashby was qnite right in his idea regarding 
the way in which the trichina spiralis found its way into the human 
body. It did not always simply burrow through the walls of the 
intestine, and encyst itself in the muscle, but it found its way into 
the circulation, and its ova were carried by the blood ; at times it 
invaded every muscle in the body, especially the eye. In sume 
parts of Germany he believed those muscles were examined, and if 
found infected, the animal was at once condemned as unfit for 
food. Now the animal could not burrow into the eye, neither 
were the vessels large enough to carry it as such. The ova were 
the particles which were so carried, and developed into the para- 
site in situ. In conclusion he would just refer to the effect of the 
round worm, the lwmbricas. He recollected, when a youth, four 
children dying in one family under suspicious circumstances. He 
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