NOTKS AND EXHIBITS. 397 



in Palaeozoic times. (2) Raised beach shells from Point 

 Arkwright, north of the mouth of the Marooch}^ River, Queens- 

 land. The shells represented include Turbo imperialis, Helcio- 

 niscus tramosericus, Donax deltoidalis, Risella melanostoma, 

 Nerita melanotrayus, and Monodonta zebra. The raised beach is 

 found at an altitude of 150 to 210 feet, the shells exhibited being 

 picked up at an altitude of 180 feet. The perfection of the large 

 shells, the similarity of the relative proportion of small, large 

 and broken shells to that of the present beach, the absence of 

 ashes and implements, and the nature of the sand all tend to 

 show that the bank is not of "kitchen-midden" origin. The 

 occurrence of very large turbos, waterworn porphyry and grano- 

 phyre boulders, and the high elevation offer evidence that they 

 are not of a wind-blown origin. The shellbank overlies altered 

 sandstone at the top of the Point Arkwright Cliff, and about 

 100 feet below, near sea-level, the porphyry laccolite comes in 

 view, yet boulders and pebbles of porphyry are found in the 

 bank. And (3) water from a sulphuretted hydrogen spring at 

 Point Arkwright. This water supports a luxuriant growth of 

 slime which was found to be Beggiatoa (probably arachnoidea) 

 filaments. The water was also found to abound in desmids and 

 diatoms. Oscillaria and Nostoc were also abundant in the water. 



Mr. Fletcher said that he had been led to take an interest in the 

 Loranths of a circumscribed locality of limited area in which the 

 conditions for their development were very favourable; and that 

 at the next Meeting he proposed to exhibit some rather remark- 

 able specimens, and to offer some observations upon these and 

 cognate matters. He therefore suggested that Members who 

 were interested in Loranths, and who were in a position to 

 exhibit noteworthy specimens, to record unusual occurrences, or 

 to give brief succinct accounts of the Loranths of other 

 localities, should take advantage of the opportunity of doing so 

 at the next Meeting, for the sake of comparison and in order that 

 the records might be kept together. 



Mr. Fletcher said also that the specimens which he hoped to be 

 able to show next month would include a series of examples of 



