iv Proceedings of the South African Philosophical Society. 
The CHAIRMAN suggested that it would be well if systematic 
observations could be made of the quantity of water flowing in the 
Orange River at a given point, and then a comparison of this with » 
the amount that reached the sea. The difference would give some 
idea of the amount finding its way underground. 7 
Mr. WESTHOFEN said they did that on a small scale by observa- 
tions taken’ on a few rivers, where notes were made of the rainfall, 
and gaugings taken of the volume of water in the river. It had 
been found that the latter was only about one-sixth of the total 
quantity received on the drainage area. 
The CHAIRMAN said that in the case of the Orange River the 
proportion must be even smaller, as he understood observations 
showed that the water at the railway bridge was only a fraction per 
cent. of the total rainfall. It would be an interesting and valuable 
study if some regular work in this direction were undertaken. 
OrpINARY Montuiuy MEETING. 
March 30, 1899. 
T, Mom, Lil.D!. M.A., Vice-President, im the Chanr. 
Dr. G. 8. CORSTORPHINE gave notice of motion that the Society 
return to the former day and hour of meeting, viz., Wednesdays at 
8 p.m. 
M. F. Roupen, Hsq., Oudtshoorn, was elected an ordinary 
member. 
Dr. GuincHRiIst exhibited several specimens obtained by the 
Government trawler, the Pieter Faure. These included (1) several 
species of Veritillum from the east coast, Table Bay, and St. Helena 
Bay; (2) other species of Aleyonarians; (3) several species of fish, 
one of which, a small flat fish allied to the genus Rhombus, was 
found on the Agulhas Bank, though its adult form was not yet 
known. 
Dr. MaruotH mentioned that he had heard that the German 
Deep-sea Expedition on the S.S. Valdwia had rediscovered one of 
the Bouvet Islands. 
Mr. L. PErincuEY showed some stone implements found at 
Stellenbosch and Paarl, which he considered the oldest types yet 
found in South Africa. He intended to lay an exhaustive account 
of these implements before the Society at a future date. 
The list of books and papers recently received was laid on the 
table. 
