1920 - 21 .] 
Meetings of the Society. 
213 
PROCEEDINGS OF THE ORDINARY MEETINGS, 
Session 1920-1921. 
FIRST ORDINARY MEETING. 
Monday, November 1, 1920. 
Professor Frederick 0. Bower, M.A., D.Sc. , LL. D., F.R.S., F.L.S., President, in the Chair. 
The following Communications were submitted : — 
1. “ Isle of Wight ” Disease in Hive Bees. 
a. The Etiology of the Disease. By Elsie J. Harvey, John Rennie, I).Sc., and 
P. Bruce White, B.Sc. 
b. The Organism associated with the Disease. By John Rennie, D.Sc. 
c. The Pathology of the Disease. By P. Bruce White, B.Sc. 
d. Experiments in Infection. By Elsie J. Harvey. 
Trans., vol. lii, pp. 737-779. 
2. On the Equations of Motion of a Single Particle. By Professor J. H. Maclagan Wedder- 
burn, M.A, , D.Sc. Proc., vol. xli, pp. 26- 33. 
SECOND ORDINARY MEETING. 
Monday, November 22, 1920. 
Principal Sir J. A. Ewing, K.C.B., LL.D., M.Inst.C.E., F.R.S., Vice-President, in the Chair. 
The Chairman announced that the Council had resolved to recommend to the Fellows certain 
changes in the Bye-laws as follows 
“ Each Fellow shall, before he is admitted to the privileges of Fellowship, pay an admission 
fee of three guineas, and a subscription of three guineas for the year of election. He shall 
continue to pay a subscription of three guineas at the beginning of each session so long as he 
remains a Fellow. A Fellow may compound for the annual subscriptions by a single payment of 
fifty guineas, or on such other terms as the Council may from time to time fix. 
‘ ‘ Each Fellow who was elected previous to December 1916 shall pay four guineas at the beginning 
of each session until he has made ten annual payments, and thereafter three guineas at the beginning 
of each session until he has completed his twenty-fifth annual payment. Each Fellow who has 
completed or shall complete his payments shall be invited to contribute one guinea per annum so 
long as he remains a Fellow, or to pay a single sum of ten guineas. ” 
The following Communications were submitted : — 
1. Obituary Notice of Surgeon-General W. C. Gorgas, Honorary Fellow. By Major-General 
W. B. Bannerman. Proc., vol. xl, pp. 187-190. 
2. On Fechner’s Law and the Self-luminosity of the Eye. By Professor W. Peddie, D.Sc. 
Proc., vol. xli, p. 60. (Abstract.) 
3. Aether and the Quantum Theory. By Dr H. Stanley Allen. Proc., vol. xli, pp. 34-43. 
THIRD ORDINARY MEETING. 
Monday, December 6, 1920. 
Professor Frederick O. Bower, M.A., D.Sc., LL.D., F.R.S., F.L.S., President, in the Chair. 
The following Communications were submitted : — 
1. Observations on the Behaviour of the Endodermis in the Secondarily Thickened Root of 
Dracaena fruticosa (Koch). By Miss Annette G. Mann. Communicated by Professor F. O. 
Bower, F.R. S. Proc., vol. xli., pp. 50-59. 
