NARRATIVE OF THE CENTENARY MEETING. XXV 
Section 
K (Botany) ; : . Royal School of Mines, Room 153, and City 
and Guilds Engineering College, Room 128, 
when Section divided. 
Do. (Dept. of Foresiry,K*) Botany Dept., Prince Consort Road. 
L (Educational Science) . Victoria and Albert Museum. 
M (Agriculture) . : . Imperial College of Science and Technology 
(main building), Physical Chemistry Lecture 
Theatre. 
Do. (Subsection of Horti- Organic Chemistry Lecture Theatre. 
culture, M*) 
The Conference of Delegates of Corresponding Societies met in 
Jehanghir Hall. 
Eventne Discourses, PuBtic LECTURES, ETC, 
Evening discourses to Members were given as follows: 
Thursday, September 24. 
Prof. W. A. Bone, F.R.S., ‘ The Photographic Analysis of Explosion 
Flames.’ In the hall of the Royal Geographical Society, 9 p.m. 
Sir P. Chalmers Mitchell, C.B.E., F.R.S., ‘“ Zoos” and National 
Parks.’ In the hall of the Royal College of Music, 9 p.m. 
Saturday, September 26. 
Sir Arthur Keith, F.R.S., ‘ The Construction of Man’s Family Tree.’ 
In the hall of the Royal Geographical Society, 9 p.m. 
Sir Oliver Lodge, F.R.S., ‘ A Retrospect of Wireless Communication.’ 
In the hall of the Royal College of Music, 9 p.m. 
Sir J. Arthur Thomson, ‘ Biology in the Service of Man.’ In the Great 
Hall of the University of London, 9 p.m. 
Tuesday, September 29. 
Sir James Jeans, F.R.S., ‘ Beyond the Milky Way.’ In the Central 
Hall, Westminster, 9 p.m. 
Dr. S. Kemp, F.R.S., ‘ Oceanography in the Antarctic.’ In the hall 
of the Royal Geographical Society, 9 p.m. 
Mr. H. E. Wimperis, C.B.E., ‘ High-speed Flying.’ In the cinemato- 
graph theatre of the Imperial Institute, 9 p.m. 
Bramwell Trust Lectwre—Sir Frederick Bramwell in 1903 made pro- 
vision for the preparation of a lecture “dealing with the whole question 
of the prime movers of 1931, and especially with the then relation between 
steam engines and internal combustion engines,’ to be given at the 
Centenary Meeting. The Presidential Address to Section G (Engineering) 
given by Sir Alfred Ewing, K.C.B., F.R.S., in the hall of the Royal 
Geographical Society on Friday, September 25 at 5 p.m., was also the 
Bramwell lecture. 
Public Lectures:—A public lecture was given by Mr. Angus Macrae on 
‘Guidance in the Choice of an Occupation,’ at 3.30 p.m. on Monday, 
