xxiv Proceedings of the South African Philosophical Society. 
he came to the conclusion that the sulphur found there was artificial, 
and he could not but think due to a wreck. He considered that 
the island was probably upheaved by the formation of gas—in 
connection with which the sulphur might have played a part. 
Dr. CoRSTORPHINE agreed with Dr. Marloth as to there being no 
need for volcanic activity to explain the phenomenon; nor was 
there any evidence of such. He compared the appearance of the 
island at Walfish Bay with the ‘“‘mud lumps” known to arise in the 
Gulf of Mexico, and quoted Sir Charles Lyell’s account of these. 
The Walfish Bay island was evidently a quite similar phenomenon. 
As to the gas, the Gulf of Mexico “mud lumps” usually gave off 
marsh-gas, and the sulphuretted hydrogen perceived as_ being 
emitted at Walfish Bay, was probably due to the decomposition 
of animal as against plant material. The fine mud from Walfish 
Bay, under the microscope, was found to contain diatoms, fish 
scales, bones, and other remnants of animal matter. On this view, 
there was no need to call in the shipwrecked sulphur as an agent in 
the formation of the Walfish Bay ‘‘ mud-lump.”’ 
Mr. L. PERINGUEY gave a summary of his paper entitled, ‘‘ Notes 
on Stone Implements of Paleolithic type found at Stellenbosch and 
the Vicinity.” 
Mr. Prsrinauey described the discovery of stone implements 
of a particularly ancient type at Bosman’s Crossing, Paarl, and 
Malmesbury. From the rude character of the chipped stones, he 
was disposed to regard them as being equal in age to the paleolithic 
implements of Kurope, but Dr. Corstorphine had shown him the 
difficulty of accepting this theory owing to the geological deposits 
in or on which the stones are found. So far no implements have 
been found in any deposit that can be regarded as of great antiquity. 
In the Stellenbosch district the implements are found imbedded 
either in the rain-wash of weathered granite or in the laterite, or 
simply on the surface, so that no geological evidence has yet been 
discovered as to the presumable antiquity of the implements. 
One feature of this occurrence, which Dr. CoRSTORPHINE pointed 
out, is that as yet no implements have been found on the recent 
alluvial terraces of the Eerste River, but only on the hill-slopes 
round about. The implements are formed from water-worn 
boulders of Table Mountain Sandstone, and often retain a 
considerable portion of the water-worn surface. 
Colonel FEILDEN expressed the pleasure with which he had 
listened to Mr. Péringuey’s- account of the stones, as he had 
given considerable attention to this subject for twenty years past. 
The amazing feature, to his mind, was the abundance of most 
