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.

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.

The Chilcot mine orebody is a steeply dipping, well defined fissure zone of brecciated andesite, with chalcopyrite in shoots, averaging about 8 per cent copper. Other minerals are bornite, pyrite, hematite, magnetite, quartz and calcite. Pre-ore faults displace the lode channel and are associated with the mineralisation. The ore body is developed by two levels 160 feet in length at 104 and 178 feet depth, and ore is being extracted from a stope between the two levels northeast of the shaft. Water level is a little over 100 feet from the surface. The general pitch of the ore body is about 45 degrees to the northeast. Exploration is recommended of the probable northeast extension of the lode down the pitch, and geophysical investigation to attempt to locate further possible shoots of ore.

A report on the Montana silver-lead mine, Zeehan, Tasmania.

The discovery of tin ore on the field was made in June, 1890, and for many years work was confined to the alluvial and detrital tin ore. The gossan outcrops of the pyritic tin-bearing ore bodies were not recognised as the source of the detrital tin for some years. During the construction of the Emu Bay Railway in 1900, the railway line necessitated a large cutting on the Renison Bell lease, and exposed the main lode system. Capital was not available for development of the property, and operations were confined to the erection of batteries to treat the detrital matter and oxidised ores which were free-milling. Spasmodic attempts have been made to treat the sulphide ore by precalcination and gravity concentration, and at the present time Renison Associated Tin Fines N.L. are experimenting with the flotation of cassiterite, which is preceded by flotation of the iron sulphides. Inspection of all workings reveal that the area has been carefully searched for all outcropping tin lodes, and mining operations have been more or less confined to selective mining of the oxidised ore and very little of the richer sulphide ore. Capital was not available for development of the property, and operations were confined to the erection of batteries to treat the detrital matter and oxidised ores which were free-milling. Spasmodic attempts have been made to treat the sulphide ore by precalcination and gravity concentration, and at the present time Renison Associated Tin Mines N.L. are experimenting with the flotation of cassiterite, which is preceded by flotation of the iron sulphides. Inspection of all workings reveal that the area has been carefully searched for all outcropping tin lodes, and mining operations have been more or less confined to selective mining of the oxidised ore and very little of the richer sulphide ore.