The pisse-prophet; or, certaine pisse-pot lectures. Wherein are newly discovered the old fallacies, deceit, and jugling of the pisse-pot science, used by all those… who pretend knowledge of diseases, by the urine…. London: E.P. for R. Thrale, 1637.
Brian attacked the “pisse-mongers” and “pisse-prognosticators” hoping to eliminate the frauds of uromancy. He warned patients against diagnosis “prescribed only by the sight of the Urine”, and argued that uroscopy should be performed by “University trained physicians”.