356 Proceedings of the Boycd Physical Society. 



Wednesday, 2\st March 1883.— Dr Traqtiair, F.R.S., President, 

 in the Chair. 

 The following gentlemen were elected Ordinary Fellows of the Society : 

 Gorman Sims Woodhead, M.D. ; Henry Prain ; John R. Henderson. 

 The following communications were read : 



1. "Description of a complete Model (exhibited) of the Fish Hatchery at 



Howietonn, prepared, at Sir James Gibson Maitland's request, for the 

 Internationa] Fisheries Exhibition." By Alexander Galletly. 



2. "Note on Abnormal Dentition in a Frugivorous Bat — Gemination." 



(Specimen exhibited.) By Andrew Wilson, L.D.S. In the 

 specimen exhibited (a Pteropus from Burmah), a tliird incisor was 

 present on the left side of the upper jaw, and there was the 

 additional peculiarity, that it, and the second incisor, were united. 

 This was the only case he had met with, showing geminated teeth in 

 the lower animals. In man it was rather rare, occurring most fre- 

 quently in the deciduous set. 



3. *' On a new species of Octopus." By W. E. Hoyle, M.A.Oxon. (Com- 



municated by F. E. Beddard, B.A.Oxon.) 



4. *' Notes on Lcpidodendron, Ulodendron, Sigillaria, and Knorria.'" 



(Specimens exhibited.) By Robert Kidston. "The writer stated 

 that he did not regard Ulodendron as a true genus, nor yet did it be- 

 long entirely to Lcpidodendron, as some authors seemed to think, but 

 the genus, as used by those who believe in its individuality, in- 

 cluded specimens of Sigillaria as well as Lcpidodendron." 



5. Dr Traquair exhibited, with remarks, a Bidental Skull of the Narwhal. 



6. " On the Occurrence of Dasypolia Tcmpli in Midlothian." By William 



Evans. Mr Evans exhibited a specimen of this moth, which 

 he had taken at rest on the outside of a window at Merchiston 

 on lltli October last. This species is not mentioned in the list 

 of local Lepidoptera published by Dr Lowe and Mr Logan in 

 1 852, j nor in the lists of subsequent captures by these gentlemen and 

 Mr A. Wilson, recorded in the Society's Proceedings for 1854, 1857, 

 and 1858 ; and it is believed the present is the first occasion on which 

 it has been observed in Midlothian. It is known to have occurred at 

 Leadhills. 



Wednesday, ^iWi April 1883.— Mr B. N. Peacii, F.G.S., President, 

 in the Chair. 

 The following gentlemen were elected Ordinary Fellows of the Society : 

 W. E. Hoyle, M.A.Oxon. ; W. A. Bryson ; Malcolm Dunn. 

 The following communications were read : 



1. "Note on a Skeleton of the extinct Solitaire {Pezo])haps soli far ia, Gni.) 



lately added to the Museum of Science and Art." By R. H. 

 Traquair, M.D. 



2. "On a hitherto unrecorded specimen of the Great Auk {Alca impennis, L.) 



belonging to the Duke of Roxburghe." (Stuffed specimen exhibited.) 

 By John Gibson. 



