Australian present and past weather data as produced by the Bureau of Meteorology. Dataset contains: Present weather data as international code; Past weather data as international code; plus additional supporting information.

Australian hourly temperature, humidity and pressure data as produced by the Bureau of Meteorology. Dataset contains: Air Temperature; Dew Point Temperature; Wet Bulb Temperature; Relative Humidity; Mean Sea Level Pressure; Station Level Pressure; Saturated Vapour Pressure; plus additional supporting information.

The establishment of seismological and magnetic observatories at Heard Island is described. Brief descriptions and photographs of the huts and instruments are given. Earthquake phases recorded between April 1951 and February 1952 are listed, as are absolute magnetic observations made between July 1951 and January 1952. Although Heard Island has two active volcanic craters, the region is not very active seismically. Only two near earthquakes were recorded, both probably 2°.9 distant along the Kerguelen ridge. The absolute magnetic observations showed that the high rate of secular change in declination and horizontal intensity is continuing.

The Ritter, Sakar, Umboi, and Long Islands form part of an arc of volcanic islands situated west of New Britain. A brief inspection of this group was carried out by J.G. Best and the writer in August 1952 following a period spent in observation of abnormal conditions at Mount Langla Volcano on Western New Britain.

A declinometer survey was made over a proposed compass-swinging base at the R.A.A.F. Airfield at Point Cook, Victoria in January, 1952, to determine its suitability. The results show that there are local magnetic disturbances which cause deviations in excess of the permissible maximum of one quarter of a degree. The site is therefore unsuitable.

This report is written as a result of observations made at Mansfield during an examination of the phosphate deposits in company with members of the Joint Parliamentary Committee on Rural Industries on the 20th March.

Australian Daily Wind Data as produced by the Bureau of Meteorology. Dataset contains: Mean daily wind speed; Daily maximum wind gust; Daily wind run from instruments at a height below 3 metre; Daily wind run from instruments at a height above 3 metre; plus additional supporting information.

The writer spent the period May 31st to June 4th, 1952, with geological parties lead by K.A. Townley and J.F. Ivanac respectively in the Mt. Isa District, Queensland. At this time E.K. Carter had carried out one week's mapping in the south of Mt. Isa township, and had traced the Mt. Isa shale and dolomitic shale for about 12 miles south of the mine. He had shown that the Templeton granite was concordant and that it was younger in age than the Mt. Isa sediments. The writer, after considering the work carried out by E.K. Carter and a study of the photographs of the region and of the geology of Mt. Isa Mines, came to the conclusions listed herein. Observations and recommendations are discussed.

The writer, accompanied by Mr. W.L. Hawthorne of the Geological Survey of Queensland, visited Longreach between 6th to 16th July, 1950, to inspect an area embracing Oakley, Cleeve and Kelso Stations, 8 to 14 miles north-east and east of Longreach. The purpose of the inspection was to re-examine the area previously mapped by Oil Search Ltd., and, if at all feasible, to recommend sites for deep drilling or scout drilling. In all an area of about 18 square miles was examined in sufficient detail to confirm Foster's mapping and to indicate that surface mapping could have little but negative value. The general geology of the area and previous investigations are described. An account is given of the present field investigation, and its results, together with recommendations for future work.

A declinometer survey was made over three sites at the R.A.A.F. Airfield at Laverton, Victoria, in January 1952, to determine their suitability as compass-swinging bases. The results show that at all three sites there are local magnetic disturbances which cause deviations in excess of the permissible maximum of one quarter of a degree. None of the sites is suitable.