Observations on the colouring-matters of the so-called bile of invertebrates, on those of the bile of vertebrates, and on some unusual urine pigments, &c
- 31 December 1883
- journal article
- Published by The Royal Society in Proceedings of the Royal Society of London
- Vol. 35 (224-226) , 370-403
- https://doi.org/10.1098/rspl.1883.0066