Proceedings of the Wernerian Society. 379 



On the Law of Visible Position in Single and Binocular 

 Vision, and on the Representation of Solid Figures, by 

 the union of two dissimilar plane figures on the Retinae. 

 By Sir David Brewster, K.H. Part T. 



Proceedings of the Wernerian Natural History Society. 



(Continued from last No., p. 177-) 



December 10. 1842 Professor Jameson, President, in the Chair. 



Mr Torrie read Mr Henry Goodsir's account of two new genera 

 of Crustacea, found by him in the Firth of Forth, and to which he 

 has given the names of Bodotria and Alauna (pubUshed in the last 

 No. of this Journal, p. 119); also Dr Traill's description of a new 

 species of Serpent from Demerara, which he has named Elaps 

 Jamcsoni (published in the last No. of this Journal, p. 53). There 

 was exhibited a very fine specimen of the Squalus vulpes, or Fox- 

 Shark, 13 feet long, taken in Largo Bay in August last. 



January 28. 1843.— The Eight Honourable Lord Greenock, V.P., 



in the Chair. 



Dr Neill read a notice regarding the ventriloquistic song of a red- 

 breast, contained in a letter addressed to him by James Heriot, Esq. 

 of Ramornie. Dr Hamilton read a paper communicated to the So- 

 ciety, entitled, The Ancient Chronology of the World, and its ap- 

 plication to Geology and the Natural History of Man. 



February 25 Sir William Newbigging, V.P. in the Chair. 



Mr Torrie read Dr Mathie Hamilton's observations on the Llama, 

 Alpaca, Vicuna, and Guanaco of Peru (published in the present No. 

 of this Journal, p. 285). Mr John Goodsir read a paper by his 

 brother, Henry D. G. Goodsir, Esq., surgeon, describing the Maidre, 

 or vast accumulation of minute marine animals which precedes the 

 appearance of a herring shoal, as observed off the Isle of May ; and 

 detailing the characters of a new species of Cetoclnlus. ' Mr Torrie 

 read Dr Mathie Hamilton's i-emarks on the production, &c. of the 

 Guano of commerce. 



March 18. — Professor Jameson, President, in the Chair. 



Mr Torrie read an account of the great explosion at Dover, by 

 Captain Stuart, communicated by Lord Greenock (published in this 

 No. of Journal, p. 337). Dr Traill read his paper on the introduc- 



