Proceedings of tJie Royal Society of Victoria. 313 



Report of the Gravity .Survey Committee. 



Since the date of the hist Report, good progress has been 

 made. Mr. Love has swung the Kater Pendulums at Sydney, 

 and his results, combined with those of Mr. Baracchi for 

 Melbourne, show that the ditference between the values of 

 gr'avity at the two places is very nearly as found by Lieut. 

 Elblein of the Austrian Survey. Mr. Ellery has completed his 

 Apparatus, in which Half-Seconds Pendulums are employed, and 

 the work of determining the constants for them is partly done. 

 Mr. Love has now taken them home to swing at Kew 

 Observatory. It is hoped that the field work of the Survey may 

 be commenced about the end of next year, but much still remains 

 to be done in the way of testing the Apparatus, and it is 

 impossible at present to speak positively on this point. 



The Committee asks for re-appointment ; and that the 

 unexpended balance (£8 18s.) of the original grant may be placed 

 at its disposal. 



E. F. J. Love, Secretary. 



Report of the House Committee. 



Your Committee have to report that during the past year there 

 has been very little for them to do. The house and grounds have 

 lieen attended to. A new bell has been placed in the caretaker's 

 house, which was ui'gently needed ; the paths in the garden have 

 been cleaned and a quantity of crude arsenic applied to destroy 

 the weeds and prevent their growth ; this was clone without 

 expense to your Committee. 



C. R. Blackett, Convener. 



Report of the Port Phillip Biological Committee. 



Your Committee has to report that the work of determining 

 the large collection of specimens collected by Mr. J. Bracebridge 

 Wilson is slowly progressing. 



The most important publication of the year, dealing with this, 

 is Dr. Dendy's "Catalogue of Non-Calcareous Sponges, Part I.", 

 which appears in this issue. 



V 



