CONTENTS OF PROCEEDINGS, 1912. 



PART I. (No. U5). 

 (Issued August S6lh, 191;?. J 



PAC!ES 



Presidential Address delivered at the Tliirty-seventli Annual 

 General Meeting, March 27th, 1912, by W. W. Fkogcatt, 

 F.L.S 1-48 



The Constitution of the Gastropod Protoconch : its value as a 

 Taxonomic Feature, and the Significance of some of its Forms. 

 By H. Leighton Khsteven, D.Sc, Lecturer in Physiology 

 and Biochemistry, Technical College, Sydney. (Communi- 

 cated by Dr. H. G. Chajmum.) (Plate i.) 49-82 



Revision of the Amycteridea. Part ii. Talaurinus. By Eustace 



W. Fergcson, M.B., Ch.M. (Plates ii.-iii.) 83-185 



The Chemistry of Doryphora sassafras. By James M. Petrik, 

 D.Sc, F.I.C., Linnean Macleay Fellow of the Society in 

 Biochemistry 139-156 



Supplementary List of the Marine Alg?e of Australia. Ity A. H. 



S. Lucas, M.A., B.Sc 157-171 



On a Collection of Parasitic Hymenoptera (chiefly bred), made by 

 Mr. Walter W. Froggatt, F.L.S., in New South Wales, with 

 Descriptions of new Genera and Species. By P. Cameron. 

 (Communicated by W. W. Froggatt) 172 216 



Descriptions of two new Species of Ichnenmonidce from the Island 



of Aru. B}' P. Cameron. (Communicated by W. W. Froijyalt) 217-219 



Hydrocyanic Acid in Plants. Part i. Its Distribution in the 

 Australian Flora. By James M. Petrie, D.Sc, F.I.C, 

 Linnean Macleay Fellow of the Society in Biochemistry ... 220-234 



Hon. Treasurer's Financial Statement, Balance Sheet, etc. ... 43-47 



Elections and Announcements ... ... ... ... ... 136 



Notes and Exhibits 48,136 



PART II. (No. 142). 

 (Issued 13th December, 1912). 



Contributions to our Knowledge of Soil-Fertility. No. v.. The 

 Action of Fat-Solvents upon Sewage-sick Soils. By R. Greig- 

 Smith, D.Sc, Macleay Bacteriologist to the Society 238-243 



Notes from the Botanic Gardens, Sydney. No. 17- By J. H. 



Maiden and E. Betche 244-252 



