president's address. 861 



author's proposed migration to London the prospect of completion 

 appears more remote than might have been desired. But I am 

 given to understand that arrangements have been made for the 

 continuation of the work outside of Australia, and since the 

 subject covers a vast and unexpected extent of new ground, and 

 cannot possibly be placed in more competent hands, it is to be 

 earnestly hoped that no avoidable delay may defer its early 

 execution. 



Dr. von Lendenfeld has also appended to his previous work on 

 the Australian Hydromedusas a third Addendum (p. 477) with 

 an amended classification, and a fourth (p. 679) on a new species 

 of Hydra ; together with a note on Gorgonia rosacea, Esch. 

 {Liriope sp. Gegenb. &c.) 



"He has also continued his enquiries into the (supposed) Glacial 

 Period in the Southern Hemisphere ; and on the tokens of 

 Olaciation which he had himself observed on the plateau of Mount 

 Kosciusko (pp. 44, 330, pi. VII. VIII. See also Vol. IX., p. 

 806, On the time of the Glacial Period in N.Z., His views on this 

 subject have been vigorously combatted by Capfc. F. W, Hutton, in 

 apaper on the supposed Glacial period in Australia, p. 334. He has 

 also contributed short papers on Section Cutting, p. 23 ; on Animha 

 parasitica, a protozoan infesting Sheep, p. 35, pi. VI. The Austra- 

 lian fresh water Rhizopoda, p. 723. Meteorology of Mount 

 Kosciusko, p. 39 ; on Flight, p. 73 ; On Recent Changes in the 

 Forest Flora of N.S.W., p. 721, and, in conjunction with Mr. 

 Brazier, on Onchidiwm chamoileon, and the structure of the 

 Dorsal skin in Onchidmm, p. 730. 



The Rev. W. Woolls, Ph.D., F.L.S., &c., has written upon the 

 Geographical distribution and economic uses of the Proteaceee of 

 Australia (p. .54) pointing out the occvirrence of existing genera, 

 as Bayiksia, Ilakea, Grevillea, in the Tertiary Beds of Northern 

 Europe, and the present limitation of all those with dehiscent 

 fruits to Africa and Australia, though no species is common to 

 the two regions. West Australia counts 15 genera of 389 species, 

 while New South Wales has 17 genera of only 124 species. 

 Queensland has 59 species, Victoria 51, South Australia 33, North 



