Notices of Memo Ira — Sedimentary Rocks. 467 



Per cent. 



H2O 53-00 



V.H.C 24-50 



F.C 21-50 



Ash 1-00 



100-00 



Sulphur 0-7 per cent. 



Nitrogen O'S per cent. 



Calorific value 5500-6000 B.T.U. 



Evaporation value . . . . 41b. water. 



Gas per ton 6,500 cubic feet. 



Ammonium sulphate per ton (theoretical), 32 lb. 



Experimental woi'k lias also proved that under proper conditions 

 a firm hard briquette can be produced without the aid of an agglutinant 

 binder. It is suitable also for use in the gas producer, the improve- 

 ments in which of recent years bid fair to give brown coal an 

 important place in the power-fuels of the world at no distant date. 



(4) The Sedimentary Rocks of South Victoria Land. By 

 F. Debenham, B.A., B.Sc, Geologist to Captain Scott's Last 

 Expedition, 1910-13. 

 rpHE topography of the area was first described in brief, showing 

 X how the comparatively meagre knowledge of tlie geology of 

 such a vast region is due largely to its ])lateau structure, which 

 presents merely an edge of the continent, the interior being completely 

 covered by a thick ice-cap. The systems at present known to occur 

 were then described in order of their age. 



1. The Foundation Hocks, a vast complex of gneisses, schists, and 

 crystalline limestones, largely of sedimentary origin, with their axes 

 of folding in a meridional direction. They must at present be 

 referred to Pre-Cambrian age, though a less altered series of slates 

 and quartzites in the Cape Adare region may possibly be younger. 



2. The Cambrian of the Beardmore Glacier. The outcrop of this 

 series has not yet been visited, the evidence for its occurrence being 

 derived from moraine blocks. Its probable disposition was sketched, 

 and a possible connexion between the Archaeocyathinae found in these 

 blocks and those found in the Weddell Sea was traced. 



3. The Upper Devonian shales of Granite Harbour. This thin bed 

 of shales was formerly supposed to be a part of the Beacon Sandstone 

 Series, with which it is quite conformable, but evidence was brought 

 forward to prove that it is of earlier date, tlie most important being 

 the occurrence of numerous Devonian fish scales. 



4. The Permo-Carboniferous Sandstones. The already well-known 

 Beacon Sandstone was proved to be of this age from the fossils 

 brought back by the last expedition. The series Avas thoroughly 

 described from three type areas, and its probable limits indicated. 

 An attempt to correlate it with other large Permo-Carboniferous 

 regions in the world was made, having special regard to the Australian 

 examples. The great variations in lithological character in different 

 parts of the series was described, and reasons for them suggested from 

 the strati graphical relationships, with a sketch of the probable climatic 



