360 Froceedmr/s of the Boyal Physical Society, 



Wednesday, 19th January 1881.— Professor H. A. Nicholson, President, in 



the Chair. 



The following gentleman was elected an Ordinary Fellow of the Society : 

 Charles Cook, W.S. 



The following communications were read : 



1. "Note of a Journey to Mexico in 1879-80." By Patrick Geddes. 



2. "A List of the Invertebrata of the Firth of Forth, Part I., comprising 



the Hydroida, Akyonaria, Echinodennata." By George Leslie, 

 and AV. A. Herdman, D. Sc. 



3. "On the Structure of Lepidodendron selaginoidcs." By Robert Kidston. 



4. " Note on the Occurrence of the Desert Wheatear {Saxicola deserti, Eiipp.) 



near Alloa " (specimen exhibited). By John J. Dalgleish. 



5 . ' * Additional Notes on the Algse of the Firth of Forth, with exhibition of 



new British species," By George W. Traill. Communicated by 

 Professor Duns. 



Wednesday, 16th February 1881. — Professor Duns, President, in the Chair. 

 The following gentlemen were elected Ordinary Fellows of the Society : 

 John White ; Allan Ewen Grant ; John Methven ; John Cooper Pottage ; 

 Wm. Christie, Jun. ; Thos. Burn Murdoch, M.B., CM. ; Wm. Lang 

 Todd, Advocate ; Kobert Humphrey. 

 The following Motion, notice of which was given at last Meeting by Mr 

 AValcot, was discussed in terms of the Society's Constitution, and was 

 declared carried, viz. : "That Ex- Presidents, by virtue of the official position 

 they have held, shall be Honorary Members of the Council, and be entitled to 

 take part in its deliberations." It was accordingly remitted to the Council to 

 make the necessary alteration in Rule VII., consequent on the passing of 

 this resolution. 



The following communications was read : 



1. ** Late Chapters in the History of the Squirrel in Scotland — Restoration 



and Spread of the Species." By J. A, Harvie-Brown, F.R.S.E. 



2. " Notes on the Post-Tertiary Deposits of Elie and Largo Bay, Fifeshire." 



By Robert Etheridge, Jun. 



3. ' ' On some Spiders from Newfoundland, with Description of a new Species. " 



By Rev. 0. P. Cambridge. Communicated by the Secretary. 



4. " On the Preparation and Preservation of Frozen Anatomical Sections." 



By Johnson Symington, M.B., CM. 



5. " On a Peculiarity in the Dentition of the Bandicoot Rat of India (Mus 



giganteus)." By Andrew Wilson, L.D.S. 

 7. The Secretary exhibited, with remarks, the following Birds : 



(1.) Hybrid Pheasant, between the Common and Golden Pheasant, 



shot at Birkhill on 15th January by Captain Wedderburn, 

 (2.) Another Hybrid, between the Common and Lady Amherst's 



Pheasant, shot in December last near Alloa. 

 (3.) A Red-necked Grebe, captured on the Lammermoors during a 



severe snow-storm on 1st February. (The last-mentioned bird 



showed naked traces of the breeding plumage. ) 



