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Art. XVIII. — Report of the Gravity Survey Committee 

 of the Royal Society of Victoria. 



[Read 16tli November, 1893.] 



Your Committee has much pleasure in reporting that good 

 progress has been made in the work of the Survey during the 

 past year. The apparatus sent out from the Kew Observatory 

 by the Royal Society of London has been erected at the 

 Melbourne Observatory in an underground apartment, under the 

 supervision of Mr. Ellery ; the observing telescope described in 

 the last report was completed and placed in position last 

 autumn : and an elaborate series of observations taken of the 

 pendulums by Mr. Baracchi, in order to connect Melbourne 

 with the Kew and Greenwich base stations.* Mr. Love has 

 obtained practice in observing, and is now engaged on a series of 

 observations intended partly to supplement those of Mr. 

 Baracchi, partly to form a starting point for the Australasian 

 Survey. 



In the course of the work a number of — as the observers think 

 — radical defects in Kater's design for an invariable pendulum 

 have manifested themselves (see appendix). It is hoped that 

 some of these disadvantages will be overcome in the new type of 

 pendulum now under construction by Mr. Ellery at the 

 Melbourne Observatory. 



The Committee has expended £12 6s. of its grant, partly cost 

 of package and transport of the pendulums, partly in necessary 

 mechanical work upon them. 



Your Committee respectfully asks for re-appointment, with the 

 addition of the name of Mr. Baracchi ; and that the unexpended 

 balance of the grant of £25 be placed at its disposal. 



E. F. J. Love, Hon. Sec. 



Proc. lioy. Soc. Victoria, vol. vi., p. 162. 



