AT the Hobart meeting in 1895 the author read a short paper on some " Indicator " features in gold occurrences. Since then in following his calling as a mining reporter, the author had collected data with a view to the confirmation or otherwise of the views then given expression to. He now submitted a paper embodying the ideas taught by further experience. The word " Indicator " originated in the year 1871, in consequence of the miners working in the slate (lower Silurian) of Ballarat East noting that a certain band, or belt, or sheet of pyritic mineral was associated with gold 'occurrence at points where it-the pyritic seam-intersected almost pancake- shaped formations of quartz. These quartz occurrences had been formed, having as a rule the lines of their so-called flat extent running at about right angles to the underlay of the strata; and as the pyritic sheet formed part of the latter, and as the quartz formations occurred in consecutive order to great depths, the pyritic sheet passed through many-some of which were found to be rich in gold, others poor. Gold in solid lumps, in sponge-like masses, and in filigree form, aggregating many hundreds of ounces in weight, had been and was then being met with daily. Thus the pyritic sheets had become known as " Indicators ;" for their presence indicated that if "flat makes" of quartz were found associated with them, the chances were in favour of nuggetty gold being got at the junctions. Since 1871 many Indicators have" been discovered in Ballarat East: all more or less pyritic, though differing in form and general appearance. Although they are not generally recognised as Indicators, similar formations are to be met with in all Victorian goldfields.