xxviii Transactions of the Royal Society of South Africa 
Okdinaey Meeting. 
An Ordinary Meeting (postponed on account of the epidemic prevailing 
at the time) was held on Wednesday, October 30th, 1918, at 8.15 p.m., 
in the Board Eoom of the South African Association, Church Square, 
Capetown. 
The President, Dr. J. D. F. Gilchrist, was in the Chair. 
Business : 
The Minutes of the previous meeting were confirmed. 
Dr. W. E, de Kortb and Prof. G. H. Stanley were elected Members. 
Prof. D. Thoday was proposed for membership by the Hon. Treasurer, 
seconded by the Hon. General Secretary. 
The Chairman gave notice of the election of the Council, President and 
Officers, and announced the Council's recommendation to the Society as 
Members of the Council for 1919 of the following seven Members of the 
existing Council : J. C. Beattie, L. Crawford, J. D. F. Gilchrist, 
W. A. Jolly, J. Moir, I. B. Pole-Evans and Sir Arnold Theiler ; with 
the following five additional Fellows : C. W. Mally, J. T. Morrison, 
C. E. Moss, A. Ogg and G. Robertson. 
The Council further recommend J. D. F. Gilchrist as President, 
L. Crawford as Hon. Treasurer, and W. A. Jolly as Hon. General 
Secretary. 
Communications : 
" Haemolysis by Serum in Combination with certain Benzol Bodies." 
By T. J. Mackie. 
It has been shown that while serum -complement acts as haemolysin in 
the presence of a specific immune body, and also along with colloidal sicilic 
acid, serum is also capable of producing lysis of red blood-corpuscles which 
have been treated with certain benzol bodies. The paper records the result 
of experiments carried out with brilliant green. 
" A Possible Lunar Influence upon the Velocity of the Wind at 
Kimberley." By J. E. Sutton. 
The object of this paper is to discuss the question whether there is 
a lunar term in the velocity of the wind at Kimberley. The results of 
hourly observations made during 180 lunations reveal only one definite 
maximum and minimum of velocity in the lunar curve, the former falling 
about three hours before lunar midnight, the latter just before lunar noon, 
the range being '20 miles an hour. When the moon is in south declination, 
the maximum of velocity is near lunar noon and the minimum near lunar 
midnight, the opposite being the case when the moon is north, the 
