286 ENTOZOA IN RELATION TO PUBLIC HEALTH, ETC. 
and that the albumen is usually soluble in an excess of nitric 
acid. 
Dr. Down referred to an instance of intermittent albu- 
minuria characterised by rigors, and followed by the presence 
of albumen and oxalate of lime in the urine, but no renal 
casts. 
Dr. Wiltshire thought the disease was allied to one affecting 
cattle much exposed to cold in pastures, and called “red 
water.” He added some personal explanations in reference 
to a paper read by him at the Society a short time since. 
Dr. Davy , in replying, did not think that Mr. Smith’s 
case could be properly considered one of paroxysmal haema- 
tinuria. He had usually, but not always, found oxalate-of- 
lime crystals . — The Lancet. 
ENTOZOA IN RELATION TO PUBLIC HEALTH AND THE 
SEWAGE QUESTION.* 
By T. Spencer Cobbold, M.D., E.R.S., E.L.S., 
Correspondent of the Academy of Sciences of Philadelphia. 
Mr. Chairman and Gentlemen, — On taking part in 
the discussions at this Association following Dr. Letheby’s 
valuable papers, communicated during the last and present 
sessions, one could not help observing how divergent were 
the opinions entertained on the subject of parasitism, more 
particularly in relation to the sewage irrigation question. 
That the causes of such diametrically opposed conclusions 
as were then put forth should remain unexplained seemed to 
some of us highly objectionable ; and, therefore, in the hope 
of clearing up a few of the difficulties then expressed, and in 
response to the officers of the Association, who did me the 
honour to suggest a communication, I have drawn up the 
following brief remarks : — 
Since the Secretaries of this Association delivered their 
report for the year 1869-70, an extended f Digest of Facts 
relating to the Treatment and Utilisation of Sewage’ has 
been prepared and published, under Prof. W. H. Corfield’s 
name, for the Committee of the a British Association for the 
Advancement of Science.” This work is of great value; 
and if thus, at the outset, I allude to Dr. Corfield’s labours, 
it is not with the view of criticising the general accuracy of 
the volume, but rather with the intention of taking excep- 
* Read before the Metropolitan Association of Officers of Health, 
January 21, 1871. 
