ABSTRACT OF PROCEEDINGS. XI. 



of interest as there are only two or three previous records 

 for Queensland. The specimens are very small, one 

 weighing 1.0005 grammes and the other 0.5910 grammes. 

 The larger specimen has a specific gravity of 2.436 and the 

 smaller 2.581 ; the latter value is considerably higher 

 than anj" other known to the exhibitor. Both specimens 

 have the double convex i)utton shape, one surface more 

 convex than the other, the flanges have broken away and 

 the surfaces are deeply pitted The smaller specimen on 

 a weathered broken face shows a mamed fluxion structure. 



Mr. C. T White exhibited three specimens of 

 interest (I) Lepidiurn 'perjoliatum, Linn. Among street 

 sweepings, Brisbane Botanic Gardens, E. W Bick. (2) 

 Inula graveolens, Desf. Stinkwort. Brisbane, C. T. White 

 (only one or two plants seen). Neither of these plants 

 are sufficiently established to record as naturalised. (3) 

 Chrysopogon acictilatus, Trin. Sandgate (Moreton Bay), C. 

 T. White. A grass pest of the tropics, common in Northern 

 Queensland and well established at the loeality referred to, 

 probably introduced from the North. 



Dr. R. Hamlyn-Harris exhibited a specimen of 

 Euspongia officinalis, var. rotunda, from the Barrier Reef 

 at Cooktown, an example of the " Hard-head Sponges," 

 which may be taken as a newly discovered AustraUan 

 product, as an outcome of inquiries made by a committee 

 appointed by the Commonwealth Advisory Council of 

 Science and Industry, to investigate the commercial 

 products of Australia's tropical seas. The sponge is 

 described as suitable for industrial purposes, such as motor 

 cleaning, etc., He also showed two further sponges of 

 excellent quahty, the first, Euspongia discus Duch. and 

 Mich, is undoubtedly a really good sponge, suitable for 

 any purjDose for wliich sponges are used. The second 

 Hippospongia sp. is probably new. Its principal fault 

 lies in its gritty nature, but it is suitable for any purpose 

 except toilet use, and Avould probably make a very good 

 bath sponge if properly prepared. These tw^o latter sponges 

 came from the reef south of Darnley Island. 



Dr. T. H. Johnston exhibited a specimen of a remark- 

 able fish, Amphisile strigaia, caught last March in Bribie 

 Passage, Caloandra. This was the second specimen which 



