Harrietville Gold Field

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	to a system between arches, which has its trough west of the present works. In this trough is to be seen the main vertical lode of the system ; it underlies east at an angle of about 45°, and runs about 50° east of south. The rock layers are more nearly vertical than the lode, and run about 10° nearer to the south. One big lens-shaped " make" of quartz was here worked to an end, by tunnel, for payable returns, I believe, but much driving on its line failed to locate another " make." A cross-cut west from the extremity of the southern workings, or east from the extremity of the northern workings, might bring to light another golden " make" of quartz. The Johnston formation is situated on the centre spur from Mount Hotham, which divides the upper watershed of the Ovens River and ends at the town of Harrietville. There are other verticals besides the one mentioned as going down in the centre of the trough known as the Mons Meg, and the Johnston. Little has been done in them, the main works at present being confined to the Johnston wing. This wing and its verticals and dyke are associated as shown in Fig. 6'. The slate



	drainage here, meeting with a nearly horizontal obstruction to its liquids, has deposited its gold, in patchy form, at their scattered points of contact with the great wing obstruction. Had this quartz been almost vertical, cutting through and receiving the drainage from the slate drains, then, provided the quartz formation had a closed-wall obstruction to it a

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