Gypsum has been found in all the states of the Commonwealth, but, as far as known at present, deposits of commercial importance are limited to New South Wales, Victoria, South Australia and Western Australia. South Australia is the major producer and provides approximately 80 percent of the total Australian production. An account of gypsum deposits and occurrence by state is given in this report.

The Curragundi Bore is situated in Portion 15, Ph. Gingham, County Benarba, 12 miles east of Four Posts No. 2 Bore and 11 miles west of Midkin No. 3 Bore. It is about 40 miles southeast of Boronga No. 2 Bore reported upon 30/5/42. The samples examined for micro-fauna were taken from the depth of 50 feet down to 2107 feet 6 inches. The results of this micro-examination are recorded in this report.

Results of a micro-faunal examination of samples from bores Nos. 188, 195, 208, and 213, parish of Maryvale, Victoria.

This report deals with the results obtained in tests with the electrical resistivity method on the brown coalfields at Morwell and Traralgon, Victoria, in an attempt to develop a rapid method of determining the presence of the coal and its depth below the surface. These tests were carried out in the latter part of 1943 by the Geophysical Section of the Mineral Resources Survey at the request of the Victorian Electricity Commission. Thirty-four resistivity-electrode separation tests were made over a wide variety of geological sections in the parishes of Maryvale, Hazelwood and Loy Yang. These tests were preceded by a number of tests by specific resistivity made on various types of overburden and on coal exposed in the open cuts at Yallourn. This report discusses the results of these tests although verbal information concerning them has already been made available to the Commission's officers. It will be shown that under certain conditions, the predictions of the depth to coal are reliable within fairly narrow limits while under other conditions the predictions are misleading. It is proposed in the first instance to outline the method and apparatus used in these tests. In addition, it is considered advisable to outline the methods of interpretation employed in order that the conclusions reached will by fully appreciated. In addition to discussing the resistivity results, the report deals briefly with the possibility of using gravity methods on the same prospecting problem. Calculations have been made of gravity anomalies to be expected from certain coal sections and it is shown that under favourable conditions this might prove of value in determining the presence and position of the coal.

The samples of chalk examined for a micro-fauna came from two localities in the Dandaragan district: "Kayanaba" Station and "Chelsea" Station. The material yielded numerous fairly well preserved tests of foraminifera and ostracoda referable to Upper Cretaceous species. The results of the examination are recorded in this report.

This deposit was examined in company with Mr. L.C. Ball, Chief Government Geologist of the Queensland Geological Survey on Wednesday, January 5th, 1944. It has previously been described in some detail by H.G.S. Cribb of the Geological Survey. Since Mr. Cribb's examination was made, the workings southwesterly from the shaft have been extended somewhat, but the owners, Messrs. Elver Bros., at the time of our visit were proposing to abandon that shaft on account of water and the fact that the drives were too long for economic working. The mining method used is expensive, slow and inefficient. Less than 50%, probably only about 30% of the bentonite is recovered by the existing procedure. This report details the origin of the deposits and proposals for future testing.

The first part of this report deals with the second phase of the geophysical test work carried out in connection with the investigations into the water seepage problems at Leeton on the Murrumbidgee Irrigation Area. The original test work was carried out by Mr. J.M. Rayner, then of the New South Wales Mines Department, following a request by the Water Conservation and Irrigation Commission. The work described herein may be considered as an extension of that done by Mr. Rayner and it will be assumed that the reader has access to his reports. The second part of this report deals with geophysical test work on a sandhill area at Narrandera where it is proposed to establish citrus farms using spray irrigation.

The Wilks Creek wolfram mine is situated in the parish of Steavenson, county of Anglesey in central Victoria. It is approximately 4 miles south from the small town of Marysville, a popular tourist resort, and 61 miles by road northeast from Melbourne. Underground and surface mapping was carried out on the 23rd and 24th November, 1943, with compass, tape and Abney level. This report comprises an overview of production history, general geology, economic geology and ore reserves.

Palaeontological notes on four rock samples from the Northern Territory.

Report on the possibilities of underground water on Piney Creek pastoral lease. This report follows a visit to the lease conducted in response to a request for advice regarding water supply.