253 



NOTES AND EXHIBITS. 



Dr. R. Greig Smith exhibited a sample of the so-called "ginger- 

 beer plant," described by Prof. Marshall Ward as consisting of a 

 microbe [Bacterium vermiforme) and a yeast {Saccharomyces 

 pyriformis)] and he explained its use and mode of action. 



Mr. Froggatt exhibited a fine collection of undescribed Scale- 

 insects (Coccidce) comprising representatives of about 44 species. 

 These were obtained, for the most part, in the western districts of 

 New South Wales, and upon native shrubs. 



Mr. Palmer exhibited a mogo or aboriginal stone axe found at 

 Helidon, near Brisbane, similar to some which he had seen in use 

 among the Blacks of the Clarence River District, both with and 

 without handles. 



Mr. Hedley exhibited, on behalf of Miss Parkes, examples of 

 the interesting mollusc, Strehloceras cygnicollis,irom Port Jackson, 

 described in his paper. 



Mr. Fred. Turner exhibited a large collection of plants, including 

 the famous "Pituri" of the aborigines, Duboisia hopwoodii, 

 F.V.M., and the bark of the "Quinine Tree," Alstonia constrictay 

 F.V.M., from the south-western portion of New South Wales, in 

 illustration of his paper. 



