464 
Philippine Journal of Science 
Of 529 prisoners receiving ox-gall treatment in the cholera brigade, 
120, or 23 per cent, became repeaters. Of this number, 68, or 13 per 
cent, were returned as repeaters from the cholera brigade as follows: 
Following first ox-gall treatment, 21 or 31 per cent. 
Following second ox-gall treatment, 42 or 62 per cent. 
Follow'ing third ox-gall treatment, 5 or 7 per cent. 
It will be seen from this that the administration of bile would 
seem to be helpful in the detection of chronic carriers. 
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(1) Annual Report of the Health Officer of the Port of New Yoi’k. 
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(2) Greig, E. D. W. Bacteriological studies of cholera like vibrios isolated 
from stools of cholera cases in Calcutta. Indian Journ. Med. Re- 
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(3) Munson, E. L. Cholera carriers in relation to cholera control. Philip. 
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(4) Report of the Philippine Health Service for the year 1916. Manila 
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(5) Report of the Philippine Health Service for the year 1916. Manila 
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Idem. The relation between the amount of cholera culture injected 
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