Light brown covered booklet 'Bulletins of the Geological Survey of Victoria issued by W Dickson, Secretary for Mines, Under the Authority of the Hon. S Barnes M L A Minister of Mines. No 41 The Confidence Group of Mines, Bendigo with Plans and Sections by H S Whitelaw, Field Geologist, dated 1918. Mines mentioned are: Confidence Extended Mine, Confidence Tribute Company and the Central Windmill Hill Mine. Mentioned in the report are crushings and gold yield, details of levels, names of leases along the reef. Extracts from Mine Manager's Half-yearly Reports, 1878-1915 of tons crushed and gold yield. Plans and sections of the Confidence Extended Mine on the Garden Gully Line of Reefs are: Plate I General Plan of All Levels, Plans of Levels Plate No II, Plans of Levels Plate No III, Transverse Section Plate No IV, Longitudinal Section Plate No V, and Central Windmill Hill Mine Transverse Section Plate No VI. Plates signed by H S Whitelaw 17 & 18/6/16 and 20/7/16.book, bendigo, mining reports, mining reports, the confidence group of mines bulletin no 41, confidence extended mine, confidence tribute company, central windmill hill mine, department of mines, bulletins of the geological survey of victoria, w dickson, the hon s barnes, h s whitelaw, h j green, mr robert eddy, mr w h cundy, j foster, c j thompson