Resume of Recent Scientific Publications. 469 



"Faulting along the Main Beef." Trans. Geol. Soc. South 

 Africa, vol. hi., 1897, pp. 82-83. 



The beds south of Johannesburg have been laid down in a 

 sinking area, and did not extend over Hospital Hill. They 

 were deposited in a shallow tidal lake. The various members 

 of the Banket series are unconformable one with another. 



E. H. L. S. 



Sawyer, A. B. " Notes on Extension of Main Beef Westwards of 

 Witpoortje." Trans. Geol. Soc. South Africa, vol. hi., 1897, 

 pp. 35-36, with section. 



Slates like the Hospital Hill beds occur at Witfontein, and 

 also eight miles south of this at Haartebeestfontein ; as no 

 slates like this lie above the Main Beef series, the presence of 

 the latter must be due to a fold or overthrust. The Black Beef 

 series lies on granite near here, indicating an intrusion through 

 the Main Beef and associated conglomerates. 



" Notes on the Bezuidenville Borehole." Trans. Geol. Soc. 

 South Africa, vol. hi., 1897, p. 38. 



Position of borehole 6,000 feet from Main Beef outcrop, and 

 the Main Beef series struck at depth of 3,100 feet to 3,250 feet, 

 dipping at an angle of 22 '5°. 



E. H. L. S. 



Draper, David. "The Extension of the Main Beef Westward of 

 the Farm, Witpoortje." Trans. Geol. Soc. South Africa, 

 vol. hi., 1897, pp. 5-14, with map and sections. Discussion on 

 the paper, pp. 15 32, with two sections. 



The accepted succession of strata near Johannesburg is : 

 1. Megaliesburg and Gat's Band series. 2. Dolomite; uncon- 

 formity. 3. Sandstone, quartzite and shale group. 4. Older 

 sandstones, quartzites and shales ; unconformity ; schists and 

 granite. Characteristic slates occur on Hospital Hill near 

 Johannesburg, and are found on the west on the farms Honing 

 Klip and Elandsfontein. Above these at the Band come the 

 conglomerates, divided into the Main Beef, Bird Beef, Kimberley 

 and Elsburg groups. The Bird Beef series is known west of 

 Witpoortje so that the other series are probably there also. 

 Above the Elsburg series there is a sheet of amygdaloidal 

 diabase, remains of which can be traced on the west. 



E. H. L. S. 



