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A sample of diatomite was submitted for palaeontological examination. The results are of the examination are recorded in this report.

This is the second progress report of the coal drilling programme near Ashford in the Parishes of Macdonald and Myall, County of Arrawatta. The first report (Record 1949/106) covered the drilling of D.D.H's 1-5. Drilling was continued to test the coal measures lying between old Ashford Colliery and the Severn River. Five more holes were drilled through the coal seam, north of No. 2 D.D.H. An account of the drilling work is set down in this report, together with a description of local geology, and estimates of the coal reserves in the field.

Consequent upon instructions received from the Superintending Geologist, Mr. C.J. Sullivan, the copper-gold deposit at Yeuralba was visited and inspected on the 9th, 10th, and 11th May, 1950. This geological report gives an overview of the inspection and its findings. The situation, history, workings, general geology, orebody, mineralisation, and production history of the deposit are briefly described.

Following a report by Mr. McDougall of the existence of sulphur deposits, possibly of large dimensions, on New Britain, deposits at Lolobau, Pangalu and Kasolali were examined in the early part of June, 1950, by the Chief Geologist, accompanied by A.K.M. Edwards, Senior Geologist, Port Moresby and G.A. Taylor, Vulcanologist, Rabaul. This report gives an account of the examination and its findings.

This report has been written as the result of conversations between the writers and officers of the Joint Coal Board in Sydney, Lithgow and Cessnock, and with similar assistance from the Geological Survey of New South Wales. The writers visited the Western and Northern coalfields during August and inspected most of the operating open-cuts. The results of the enquiries are presented in five tables which are set out at the end of this report and which contain, in statistical form, the greater part of all the information elicited. The text matter of the report is explanatory of the tables and also discusses the methods which have been used in arriving at the estimates of coal reserves. In the ensuing discussion emphasis has been laid on coal reserves available for open-cut mining, and all enquiries directed to the Join Coal Board were concerned with open-cut coal only.

For the first time the hypostoma of an eodiscid trilobite, Pagetia bootes Walcott, is described. The presence of a doublure with terraced lines, and schizochroal eyes as observed on Australian Pagetiae, is mentioned. Obviously the trilobite nature of the Eodiscidae is no longer in question.

The writer received instructions to commence the geological mapping of the Port Moresby area with special attention to economic aspects, such as, raw materials for the manufacture of cement, materials for concrete aggregates, road surfacing materials, etc. This work was commenced on November, 30th, 1949, and a general rapid reconnaissance of the more readily accessible areas carried out.

At the end of the 1949 field season A.A. Opik, accompanied by D.M. Traves, collected fossils and made stratigraphical observations in the area between the lower reaches of the Ord River and the Victoria River. This report gives a preliminary summary of the results of the journey.