“…Several methods have been described for determining the presence of P.A.S. in urine, depending on the colour produced with Ehrlich's reagent (Venkataraman et al, 1948;Herold, 1951;Penman and Wraith, 1956;Ruiz, 1957), hypochlorite (Simpson, 1956), or ferric chloride (Simpson, 1956;Penman and Wraith, 1956;Dixon et al, 1957). Though existing tests are reliable and sensitive when carefully applied in the laboratory or outpatient department, none have the simplicity of " clinistix " for glucose (Luntz, 1957) or " albustix " for proteinuria (Macgregor, 1958; Baron and Newman, 1958;Frazer, 1958).…”