In the search for oil in Queensland, Drillers Limited, a subsidiary of Oil Search Limited, Sydney, put down a deep bore at Hutton Creek near Injune, in the parish of Simmie, county of Westgrove and 60 miles north of Roma. Drilling operations, which began in 1935 and ceased in 1938 when the depth of the bore was 4,688 feet, were carried out with a Commonwealth Government plant. The major part of the drilling was done by the percussion method, but cores were taken at various depths down to 4,678 feet. No samples were received for microscopic examination until the bore reached the depth of 650 feet, but from this depth to the bottom of the bore-hole, 638 samples of cuttings and cores were examined. Findings from a study of these samples are recorded in this report.

The following notes are intended to accompany Map No.1049, which has the same title as that given above. This map was prepared at the request of the Survey Directorate, L.H.Q., Melbourne, Department of the Army, and is primarily for the use of the Director of Survey, Advanced L.H.Q., Brisbane. The map is termed "provisional" since it is based on only a portion of the data available and the reductions have been made by approximate methods. Nevertheless since use has been made of that portion of the data which has been most recently observed it is considered the most reliable for most practical purposes. For some time work has been proceeding on a final map showing the distribution of magnetic inclination over Australia and the surrounding areas, and this map will be available in the near future.

A report on the Lake Cargellico magnesite deposit following a visit on 30th May, 1944.

In the years immediately preceding the present war, 75 per cent of the world's production of tungsten concentrates came from southeast Asia; approximately 50 per cent came from China. This production consisted almost wholly of wolfram. With the entry of Japan into the war in 1941 and its occupation of Indo-China, Thailand and Burma, these supplies were cut off from the United Nations. This cessation of supplies made it necessary that all countries amongst the United Nations should make intensive efforts to increase their production of tungsten ores and concentrates. In Australia, the effort was necessary in order that as much tungsten concentrate as possible could, after domestic requirements were satisfied, be exported to Great Britain and the United States of America. As the King Island Scheelite Mine was (and still is) the largest producer of tungsten concentrates in Australia, the possibilities of increased production from the that mine were among the first to be considered.

Gibsonvale tin field is situated approximately three miles southeast of the village of Kikoira. This preliminary report was prepared following an examination of the tin field by the writer. Aspects of the general and economic geology of the field are discussed herein.

The Sydney Harbour Degaussing Range is situated opposite Bradley Head. The purpose of the survey was twofold. First, to determine the average normal values of the vertical (Z) and Horizontal (H) force components of the Earth's magnetic field in that part of the harbour which would be occupied by a ship passing over the coils. Secondly, to measure the magnetic elements, i.e. the Declination, Inclination and Horizontal Intensity of the Earth's field at a base station conveniently situated for use by naval personnel for the purpose of calibrating Pot Magnetometers, etc. The particulars of this survey work and given in this report.

The presence of asbestos at various places in the Harts Range has been reported from time to time, and, in recent months it was reported that the largest of these deposits consisted of Chrysotile. A brief examination of this deposit was made in October, 1944, and specimens of the asbestos then collected were specifically identified as anthophyllite. This report comprises notes on locality, geology, and mineral occurrence, and includes a locality and sketch plan.

The mine is situated on Black Andrew Mountain about 4 miles south of the wall of Burrinjuck Dam and in the parishes of Goodradigbee and Childowla. Surface features were mapped by C.H. Zelman and H.B. Owen in November, 1942 by stadia alidade and planetable, and underground mapping was brought up to date by F. Canavan and H.B. Owen on 20th March, 1944 using tape, alidade and clinometer. This report details the production history, general geology, and economic geology of the Black Andrew mine.

An examination of samples from the depth of 100 feet down to 850 feet.

Palaeontological notes on four rock samples from the Northern Territory.