324 Proceedings of Societies. 



Royal Physical Society. 



Thursday, 25th November 1863.— James M'Bain, M.D., R.N., President, 



in the Chair. 



The Pkesident delivered an Opening Address " On the Theory of a 

 Central Pleat." 



The followini^ Communication was read : — 



Oa the Strata discovered in making the East of Fife Extension Rail- 

 way ; with Special Remarks on the Brick-Clay Beds at Elie, Fife. By 

 the Rev. Walter Wood, Elie. 



Wednesday, 23d December 1863, — James M'Baix, M.D., R.N,, President, 



in the Chair. 



The following Communication was read : — 



On the Central Heat of the Earth. By Dr Stevenson Macadam, Ph.D., 



&c., Lecturer on Chemistry. 

 Dr J. A. Smith Exhibited a male and female of the Anser Egyptiacus, 

 the Egyptian Goose, recently shot near Dunbar. 



Wednesday^ 27th January 1864. — William Turner, Esq., M.B, , 

 President, in the Chair. 



The following Communications were read : — 



I. — -Deductions from the Hypothesis of the Internal Fluidity of the Earth, 



By William Stevenson, Esq., Dunse. 



II. — Remarks on Dr Macadam' s " Spheroidal Theory^^ of the Interior 



of the Earth. By T. Strethill Wright, M.D. 



Wednesday, 24:th February 1864. — Thomas Strethill Wright, M.D., 

 President, in the Chair. 



The following Communications were read — 



I. — A Wernerian Examination of the Six Points of Pluto-Huttonism. 



By Professor W. Macdonald^ St. Andrews. 



II. — Some Objections to the Nebulo-Oeological Hypothesis^ as stated in 

 Dr James APBain^s Opening Address to the Royal Physical Society. 

 By Patrick MacFarlane, Esq., Comrie. 



III. — On the Irregularities of the Earth's Surface, and the probable 

 Mean Line of the Terraqueous Circumference. By William Rhind, 

 Esq. 



The periphery of the earth's surface consists of land and water at dif- 

 ferent levels, and the question may be suggested — whether is the surface 

 of the ocean or the mean level of the land the true line of the earth's cir- 

 cumference, or in other words, what is really the medium line of the irre- 

 gularities of the earth's surface ? 



Though our knowledge of the sea-bottom is yet very limited, yet the 

 investigations of recent years have added very considerably to this know- 

 ledge. The soundings of Sir James Ross in various parts of the ocean 



