Two reports on the Costerfield Gold-Antimony veins have been published. Bulletin No. 50 of the Victorian Geological Survey, by H.S. Whitelaw gives an account of the lodes and workings and of the history of the mine. An excellent description of the reefs and the mineralisation by Dr. F.L. Stillwell appeared in the proceedings of the Australasian Institute of Mining and Metallurgy, New Series, No. 48, 1922. In view of the existence of these publications, repetition of the details of Costerfield history, workings and geological features is avoided as much as possible in this report, and they are merely summarised in order to present the essential facts concerning the mineralised system.

The relevant portions of letters from Non-Metallics Limited addressed to Mr. J.M. Newman, setting out the reasons for their Application for a Commonwealth Grant, and the details of the Company's position are reproduced here.

This series of samples from 650 down to 1262 feet from W.R. Johnston's Bore, near Bourke, is in continuation of that reported upon on 13th November, 1941. The samples are described in detail within the report.

The Nelson Bore, which is still in progress and is being drilled with the Commonwealth Rotary plant in collaboration with the Victorian Mines Department, has now reached the depth of 3746 feet, with no indication that the basement rock will soon be reached. Unfortunately no bore in Western Victoria or south-eastern South Australia has been drilled to bedrock, consequently no suggestion can be made as to the possible depth at which it will be met in the present bore. The deepest bore in the area to be palaeontologically examined is Knight's Dome, No. 2, Mt. Gambier, South Australia, which reached the depth of 2013 feet, drilling ceasing in carbonaceous sands.

No. 2 Bore, Boronga is situated north of Moree, near the New South Wales - Queensland border. The samples forwarded for microfaunal examination were from between the depths of 25 feet and 2104 feet.

Report on the facts and cost of maintaining and increasing production at the Mount Bischoff tin mine, Waratah, Tasmania.

The Coorabin coalfield bore and shaft sites are listed. A short description is given of each site.

Legacy product - no abstract available

Report on surveys made at Coorabin on 12th and 13th August, 1942. Locations of drill sites and bores, and R.L. values are listed.

Geophysical test surveys were made at Boolarra with the object of determining whether geophysical methods were suitable for the exploration of the bauxite deposits found in that district. Field operations were carried out during the period 17th April to 15th May and consisted of the following: 1. Open Cut Deposit - Surface survey and examination of available sub-surface data, geophysical survey using the Resistivity method, over a small area adjacent to the open cut, geophysical survey using the geomagnetic and Natural Earth Potential methods, on one transverse; 2. Orgill's Deposit - Surface survey and examination of available sub-surface data; 3. Budgaree Deposit - Surface survey and examination of available sub-surface data.