president's address. 1215 



"On the Coal Flora of Australia." By Rev. J. E. Tenison- 

 Woods, F.L.S.,F.Ct.S. 



" Occasional Notes on Plants Indigenous in the immediate 

 neighbourhood of Sydney." By Edwin Haviland. 



" Synonymy of Australian and Polynesian Land atid Marine 

 Mollusca." By John Brazier, C.M.Z.S. 



" New Australian Fishes in the Queensland Museum." By 

 Charles W. de Vis, M.A. 



"Revision of the Recent Lamellebranchiata of New Zealand." 

 By Captain F. W, Hutton, F.G.S. 



"The Myrtacete of Au.stralia." By Rev. W. Woolls, Ph.D. 



" Plants which have become Naturalized in New South Wales." 

 By Rev, W. Woolls, Ph D. 



" Marine Annelids of the Order Serpulse. Some observations 

 on the Anatomy, with the Characteristics of the Australian 

 Species." By W. A. Haswell, M.A., B.Sc. 



Besides numerous special Papers upon various subjects of Natural 

 History, by Baron Sir Ferd. von Mueller, K.C.M.G., F.R.S., Dr. 

 James 0. Cox, F.L.S., Professor W. J. Stephens, M.A., Dr. H. 

 B. Guppy, R.N., Baron Miklouho-Maclay, M. F. Ratte, M.E., 

 and other authors mentioned in my previous address. 



The Paper on the " Mode of Formation of Barrier Reefs in 

 Bougainville Straits, Solomon Group." By Dr. H. B. Guppy, 

 R.N., is specially interesting as throwing additional light upon 

 the origin of the Bai*rier Reefs. Dr. Guppy states that these 

 Barrier Reefs have evidently been formed, during a period not of 

 subsidence but of upheaval, and that the intei'vening channels 

 represent belts of detritus upon which the reef building corals 

 could not live ; and he arrives at the conclusion that in the case 

 of reefs which possess such a gradual slope that the lower margin 

 of this band of detritus lies within the zone of reef-building 

 corals, a line of barrier reef will be ultimately formed beyond 

 this band with a deep channel inside ; but in the case of reefs 



