PRESIDENTS ADDRESS. 1221 



July 2nd. — (a) " Notes on Gold." By Dr. Leibius, M.A., F.C.S. 



(b) " On the Oven Mounds of Aborigines of 

 Victoria." By Rev, P. MacPherson, M.A. 



Aug. 6th. — " Notes on the Trochoided Plane." By Mr. L. 

 Hargrave, with explanatary models. 



Sept. 3rd. — "On a New Form of Actinometer." By Mr. H. 

 C. Russell, B.A., F.R.A.S. 



Nov. 5th. — " Notes on Some Mineral Localities in the Northern 

 District of New South Wales." By Mr. D. 

 A. Poi-ter. 



Nov. 5th. — " Exhibits of Minerals from Mittagong & Berrima." 

 By Professor Liversidge, F.R.S. ; and from 

 Silverton, by Mr. C. S. Wilkinson, F.G.S. 



" Exhibition of Hughes's Induction Balance and 

 Sonometer." By the Hon. Professor Smith, 

 C.M.G. 



Dec. 3rd. — (a) " Notes on Doryanthus," illustrated by specimen 

 of a new species. By Mr. C. Moore, F.L.S. 



(6) " Notes on a Self-registeiing Anemometer." By 

 Mr. H. C. Russell, B.A., F.R.A.S. 



(c) " On Water Supply in the interior of New 

 South Wales." By Mr. W. E. Abbott. 



Dec. 17th.— At "Special Meeting," Mr. Caldwell, Fellow of 

 Caius College and Balfour Student of Cam- 

 bridge, gave a resume of his investigations 

 lately carried on by him in Australia, with 

 regard to the " Echidna, Platypus and Cera- 

 todus," illustrated by specimens and diagrams. 



The Geographical Society of Australasia, of which Sir Edward 

 Strickland is Vice-President, is now making arrangements for 

 sending an exploring expedition to New Guinea, which is likely to 

 lead to important discoveries of great interest to our Society. 



