62 S. GLASENAPP. 



systematical rate, yet the calculated angle of position for the last 

 observation differs so much from the observed that we cannot 

 admit such an error, and must suppose that his elements are not 

 the most probable ones. 



New observations made during the current year will make it 

 possible to decide the question with certainty. 



On the VALUE of GRAVITY at the SYDNEY 

 OBSERVATORY. 



By E. F. J. Love, m.a., Fellow of Queen's College, 



Demonstrator and Assistant Lecturer in Natural Philosophy in 

 the University of Melbourne. 



(Communicated by H. C. Russell, b.a., c.m.g., f.r.s.) 



[Read before the Royal Society of N. 8. Wales, June 6, 1892.'] 



Some years ago the Royal Society of Victoria — acting on a 

 suggestion made by the present writer — appointed a Committee* 

 to superintend the carrying out of a gravity Survey of Australasia. 

 This committee obtained from the Royal Society of London the 

 loan of three pendulums which had already been swung in many 

 parts of the world, notably in the operations of the Great Trigo- 

 nometrical Survey of India ; a number of observations have been 

 taken with these pendulumsf in order to determine the relative 

 values of the acceleration due to gravity at Melbourne and Sydney, 

 and to compare them with the observations made with the same 

 pendulums at Kew and Greenwich. 



* Proc. Roy. Soc. Vic. (New Series), Vol. n., p. 163 ; and the Eeports 

 of the Gravity Survey Committee in subsequent volumes. 



f See Barracchi, Proc. Eoy. Soc. Vic. (New Series) Vol. vi., p. 162 j 

 and Love, Proc. Eoy. Soc. Vic. (New Series), Vol. vn., p. 1. 



