Edward John Waring,
Remarks on the Uses of some of the Bazaar Medicines and Common Medical Plants of India
“ To judge the odour correctly, the urine should be put into a fresh dish and examined in some other room, or, what is better, the open air, so that there can be no mistake, as the air of any house gets so saturated with the odour of carbolic acid that it is not easy to judge whether the odour is that of the air or of the urine. If danger from excess of absorption of carbolic acid is feared, do not give up the treatment, but lower the strength of the carbolic acid in the oil to 1 in 20, and more or less limit the number of the applications. ”
