REPORTS OF COMMITTEES. 



(1) Report of the Port Phillip Biological Committee. 



During the year Mr. E. II. Sykes, B.A., has reported on the 

 collection of Polyplacophora which had been got together mainly 

 by the late Mr. J. Bracebridge Wilson. The report with a plate 

 has been published m the " Proceedings of the Malacological 

 Society," vol. II., pt. 2, July, 1896. Mr. Sykes has been able to 

 compare the specimens with those types which are in the British 

 Museum and, in some cases, lias had the advantage of the advice 

 of Mr. Pilsbry. He has thus executed a revision which will be 

 of the greatest value to students of our Mollusca, and for which 

 the warmest thanks of the Society are due. The types of the 

 new species and the originals of the figured specimens, together 

 with examples of all the twenty-two species enumerated have 

 been returned to the Society, and are at present in the Museum 

 of the Biological School. 



Owing to the scarcity of funds at the disposal of the Society 

 for publication purposes Mr. G. B. Pritchard has suspended his 

 work on the revision of the Mollusca of Victoria. This is greatly 

 to be regretted as he had already completed a portion of the work 

 and has a large amount of material and notes on hand. 



Baldwin Spencer, Secretary. 



(2) Report of the Gravity Survey Committee. 



The work of the Committee, consisting of Professors Lyle and 

 Masson, Messrs. Baracchi, Ellery, Love (Secretary), and White, 

 during the past year consists mainly in a determination of the 

 constants of the pendulums. This is now nearly completed, and 

 will be finished very shortly. The reduction of Mr. Love's 

 observations is in great measure completed ; and it is hoped that 

 the complete results of the Melbourne observations and of those 

 made in England will be ready for publication early next year. 



E. F. J. Love, Secretary. 



