LIST OP CONTRIBUTORS AND TITLES OF PAPERS. V. 



Sloane, Thomas Gr. — pagk 



Revisional Notes on Australian Carahidce. Part ii. .. 103 

 Australian Carahidce: Check-List. Parti. Subfamily 



Carabinfe. (Issued separately as a Supplement 



to Part i. of the Proceedings). 

 Five New Species of Gicindela from Tropical Australia. 229 



Smith, R. Greig-, D.Sc, Macleay Bacteriologist to the 

 Society — 



Abstract of a Lecture entitled " Our First Line of 



Defence against Microbic Attacks." ... ... 26 



The Possible Relationship between Bacteria and the 

 Gum of Hakea saligna \_Bac. pseudarabinus ii., 

 n.sp.] 136 



The Origin of Natural Immunity towards the Putre- 

 factive Bacteria ... ... ... ... 149 



The Probable Bacterial Origin of the Gum of Linseed 



M.\xci\a.ge [Bacilli lini, i -u., n.spp.] ... ... 161 



The Role of Agglutination in Immunity ... 289 



A Gelatin-hardening Bacterium [Bacillus indurans, 



n-sp-] 



The Probable Identity of the Opsonins with the Normal 



Agglutinins. ... ... ... ... 555 



A Pleomorphic Slime-Bacterium [Bacillus alatus, n.sp.] 



(Plate xxxv.j 570 



Steel, Thomas, F.C.S., F.L.S.— 



Presidential Address delivered at the Thirty-first 

 Annual General Meeting, March 28th, 1906. 

 (Plate xxxvi.) 605 



Tillyard, R. J., B.A. — 



On Dimorphism in the Female of Ischnura heterosticta, 



Burm. [Neuroptkra : Odonat,a\ ... ... ... 302 



On the supposed Numerical Preponderance of the 



Males in 0(^ona«« .. . ... ... ... ... 344 



Descriptions of three new Australian Species of the 



Genus Austrogomphiis [Neuroptera : Odo7iata]. 



(Plate xxxiv.) ... 547 



339 



