x Transactions of the South African Philosophical Society. 



J. M. Bain, and we found the denuded part of the dune sprinkled 

 here and there with a considerable number of minute stone imple- 

 ments, some of which I am exhibiting to-night. No large ones of the 

 palaeolithic type were met with. These liliputian implements (some 

 of them are not more than 11 mm. long) must, I think, be taken to 

 have been arrow-heads ; the others are plainly knives, and to those 

 who may doubt of their having been implements at all, I show 

 similar knives used by a bushman to carve toy-like pieces of wood 

 representing a gun and a spade, and found together in a kraantz in 

 Sutherland among ashes and other debris. The cores from which 

 these pygmy implements were made were also found in situ. Small 

 scrapers showing secondary chippings, and similar to those met 

 lately in the Transvaal by our colleague, Mr. J. P. Johnson, were 

 also found. But if we did not, to my disappointment, meet with 

 large instruments of the type occurring so frequently in the Stellen- 

 bosch and Paarl Districts, we found the mullers, or beaters, with 

 which the bones have been crushed. They are of the same form as 

 those found in other middens. 



The author of this note does not mean to imply that the makers 

 of these pygmy implements were contemporaneous with Bubalus 

 baini, because bones of other living animals like the eland, the 

 sand-mole, &c, are also to be found in that deposit, but the discovery 

 is sufficiently important to be brought to the notice of the Society. 



Professor J. C. Beattie read a paper on "Atmospheric Electricity," 

 by Messrs. J. C. Beattie and J. Lyle. The observations were 

 carried out in 1902-3 by Mr. J. Lyle in Bloemfontein for a year, and 

 by Mr. W. H. Logeman in Cape Town for part of a year. The 

 intention was to find what relation, if any, existed between the 

 observed values of the leak of electricity as measured by individual 

 observations with an Elster Geitel electroscope and simultaneously 

 observed values of barometric pressure, relative humidity, and 

 temperature. 



The observations show that there is a diminution of the leak of 

 positive and of negative electricities with increasing relative humidity 

 except when the relative humidity is between 40 and 50 per cent. 

 Also in the morning, when the temperature is rising, and the relative 

 humidity dropping the leak of negative electricity is greater than 

 that of positive, whereas in the afternoons with the temperature 

 falling and the relative humidity increasing, the negative leak is, as 

 a rule, less. 



The leak of electricity increases with increasing temperature and 

 decreases with decreasing temperature, the maximum leak being 

 a little earlier than the maximum temperature. 



