XXVIII 



An account of this Committee will be found in the First Progress 

 Report of the Permanent Honorary Secretary, dated September, 1918. 

 A preliminary account of this installation and working of the pendulums 

 at Burrinjuck was read before the Royal Society of New South Wales 

 (see Journal for 1915). The observations have been systematically 

 carried out by Mr. A. Goodwin since the pendulums were first 

 established. 



Assistant Professor Leo. A. Cotton, D.Sc, of the University of 

 Sydney, furnished a report, and Mr. Campbell, the engineer in charge 

 of Burrinjuck Dam has taken the greatest interest in the work, which 

 has been prolonged, partly because on account of the war, the con- 

 struction of the Dam was delayed. The examination of the records 

 since the preliminary account already referred to have served to 

 explain in large measure the movement which was then regarded as 

 being secular in character. It now appears that the movement is 

 chiefly, if not wholly, seasonal in character, and that it is a function 

 of the underground temperature. 



It is, of course, essential for this work, as well as for the main 

 investigation, to have a detailed geological and topographical survey 

 of the area. This work was taken up about two years ago, and though 

 far from completion, has yielded important information with regard 

 to the lithographical characters and rock structures of the area under 

 investigation. This work is now being carried forward hand in hand 

 with the pendulum observations. The General Council voted the 

 sum of £105, already expended in anticipation, together with £50 for 

 future work. 



5. The Samoan Observatory at Apia, originally founded by the 

 German Government in 1902, is described in the Neiv 

 Zealand Journal of Science and Technology, Vol. III., p. 157 

 (1920), by Dr. C. E. Adams and Professor E. Marsden, 

 D.Sc. It is considered in the highest degree desirable that 

 it should be maintained at pre-war efficiency, and that 

 the cost of it be contributed to by Great Britain, New 

 Zealand, and Australia. 



The matter was brought before the Council of the Association, 

 which passed the following resolution : — 



That this Association urge upon the Federal and State Govern- 

 ments the importance of the work of the Observatory in Samoa, 

 and the desirability of contributing One thousand pounds (£1,000) 

 per annum as the Australian share of the cost of upkeep of this 

 institution as an Imperial Observatory. 



