224 Proceedings of the Royal Physical Society. 



F.G.S. ; Andrew G, Stenhouse; W. Eagle Clarke, F.L.S. ; Professor 

 John Dunstan, M.R.C.V.S. ; Professor Graham Kerr, M.A. ; J. H. 

 AsHWORTH, D.Sc. ; David Hepburn, M.D., F.R.S.E. 



The Secretary, Treasurer, and Librarian submitted their Annual Reports. 



The following communications were read : 



1. "Note on the Occurrence of certain Cladocera in the Edinburgh District." 



By Miss Sprague. Communicated by T. B. Sprague, Esq., LL.D. 



2. "Some more Aculeate Hynienoptera from the Forth Area." By Wm. 



Evans, F.R S.E. 



3. "Exhibition, with Remarks, of mimetic Diptera, from the Malay Penin- 



sula." By Nelson Annandale, Esq., B.A. 



4. "On the Genital System of the Male Porpoise {Phocosna communis)" By 



David Hepburn, Esq., M.D., and David Waterston, Esq., M.D. 



5. Mr W. Taylor exhibited the pes and nianus of an ox, which had three 



functional toes on all four feet. 



Monday, 26th January 1903.— Professor J. Cossar Ewart, M.D., F. R.S., 

 President, in the Chair. 



The following gentlemen were elected Ordinary Fellows of the Society : 

 W. A. Middleton, Esq., C.A. ; E. B. Jamieson, Esq., M.B., Ch.B. 



The following communications were read : 



1. "Some Colour Variations in the Adder ( J^/^^crd &t'/-ws) ; their extent and 



significance with special reference to Melanism." By Gerald Leighton, 

 Esq., M.D. 



2. "Exhibition of some Ophidian Specimens — (1) To show the capacity of 



the Oi^sophagus of VqKra hcrus; (2) Slough of Python violurus; (3) 

 Slough of South American Boa." By Gerald Leighton, Esq., M D. 



3. "Accessory Fins and Girdle in Raia batis/' By John Rennie, Esq., 



B Sc. Communicated by Professor J. Arthur Thomson, M A. 



4. "Exhibition of Models of Echinoderm Development.'* By A T. 



Masterman, Esq., D.Sc, F.R.S.E. 



Monday, 23)-d February 1903.— Professor J. CossAR Ew^art, M.D., F.R.S., 

 President, in the Chair. 



The following communications were read : 



1. "Is Progressive Evolution arrested by Intercrossing ? " By the President. 



2. " On Polydactylism in the Horse and Ox." By Professor John Dunstan, 



M.R.C.V.S. 



