Point Edward quarry five miles north of Sydney Dear Sydney July 23-1913 In the region of the great magnesian lime - stone quarries in the Steel Works of Sydney one gets to see fairly once the Brindzon series. The overlying iron has me a thick series of employ- ment, layers more cemented breccias that merely changing into red shales. Then follows brims of thick bedded magnesian lime some of which are these are at the top of the Brindzon formation (see obsd p. 253). I fine volute. Calcareous algae are exceedingly common in many places but in the great quarries make a Torrejita kind. There are 2 or 3 forms. In one case one cannot make it out as what they were but in others it is clear Pardoctin. I never saw before so much Palaeozoic algal material. Some of the inter- between the limestone mediate grns are red shales. No gypsum is associated with these lime, but in the next stratum grading to the north gypsum occurs. There were here just only thin basins between land barriers or that the facies is different in the ocean basin. Associated with the algae Pardoctin