336 Proceedings of the Koyal Society of Edinburgh. [Sess. 
position and Action of their Poisons. By Professor Sir Thomas R. Fraser, F.R.S. {Arrows, 
Bows, and Quivers ivere exhibited.) 
2. Regeneration of the Legs of Decapods from the preformed Breaking Planes. By J. Herbert 
Paul, M.A., B.Sc. Communicated by Professor D. Noel Paton. ( With Lantern Illustrations.) 
3, The Degrees of Dissociation in the Saturated Vapours of the Ammonium Halides. By 
Professor A. Smith and R. H. Lombard. 
FIFTH ORDINARY MEETING. 
Monday, January 18, 1915. 
Lord Kingsburgh, F. R.S., Vice-President, in the Chair. 
At the request of the Council the following Address was delivered : — 
Visit of the|?Bidtish Association to Australia in 1914. {With Lantern Illustrations.) By 
Professor F. 0. Bower, F.R.S. 
The following Communication was presented : — 
Formulse and Scheme of Calculation for the Development of a Function of Two Variables in 
Spherical Harmonics. By Professor T. Bauschinger, Strassburg. Communicated by the 
Geheral Secretary. 
The following Candidates for Fellowship were balloted for and declared duly elected : — Charles 
Anthony, M.Inst.C.E., M.I.Mech.E., F.R.A.S., etc., Casilla, Correo 149, Bahia Blanca, 
S.O.S., Argentine; Alfred Archibald Boon, D.Sc., Assistant Professor of Chemistry, Heriot- 
Watt College, Edinburgh; Lewis P. Orr, F.F.A., Secretary of the Scottish Life Assurance Co., 
14 Learmonth Gardens, Edinburgh. 
Mr Andrew WiLSON;-and Dr Spencer Mort signed the Roll, and were duly admitted as 
Fellows of the Society. 
SIXTH ORDINARY MEETING. 
Monday, February 1, 1915. 
Professor Sir E. A. Schafer, F.K.S., Vice-President, in the Chair. 
The following Communications were read : — 
1. Studies on Periodicity in Plant Growth. Part II— Correlation in Root and Shoot Growth. 
By Mrs Rosalind Jones {nee Crosse), B.Sc. Communicated by R. A. Robertson, M.A., B.Sc. 
2. The Histology of Disseminated Sclerosis. By Dr James Dawson. Communicated by 
Dr A. Ninian Bruce. 
The following Candidates for Fellowship were balloted for, and declared duly elected 
Raymond Keiller Butchart, B.Sc., Assistant Lecturer in Mathematics, University College, 
Dundee, 8 Martin Street, Maryfield, Dundee; and Robert Campbell, D.Sc., Lecturer in 
Petrology, University of Edinburgh, 7 Muirend Avenue, Juniper Green, Edinburgh. 
Dr A. A. Boon signed the Roll and was duly admitted a Fellow of the Society. 
SEVENTH ORDINARY MEETING. 
Monday, February 15, 1915. 
Dr Peach, F.R.S., Vice-President, in the Chair. 
The following Communications were read : — 
1. Skiagraphic Researches in Teratology. By Dr Harry Rainy and Dr J. W. Ballaniyne. 
{Illustrated by Lantern and by X-ray ‘photograyhs of abnormal development of bones in the Foetus.) 
2. Three connected papers: (1) On Hcemonais laurentii, a representative of a little-known 
genus of Naididse ; (2) On a Rule of Proportion observed in the Setae of Certain Naididae ; (3) 
On the Sexual Phase in certain of the Naididae. By Professor J. Stephenson. 
3. The Ordovician and Silurian Brachiopoda of the Girvan District. By Dr F. R. C. Reed. 
Communicated by Dr Horne, F. R.S. 
