446 Mr. J. N. Langley. On the Origin of the [Feb. 18, 



Camel (T.) Epitome Florae Europse. Fasc. 1. Monocotyledones. 

 8vo. Florentice 1892. The Author. 



Fayrer (Sir J.), F.R.S. Presidential Address, International Congress 

 of Hygiene and Demography, 1891. 8vo. London [1892]. 



The Author. 



Roscoe (Sir H. E.), F.R.S., and C. Schorlemmer, F.R.S. A Treatise 

 on Chemistry. Vol. III. Part VI. 8vo. London 1892. 



The Authors. 



Map of England showing Lines of Equal Magnetic Declination for 

 January 1, 189?. The Editor, ' Colliery Guardian.' 



Reduced Photograph of Map showing the Points of Earthquake 

 Frequency in New Zealand. Mr. George Hogben, Timaru. 



February 18, 1892. 

 The LORD KELVIN, D.C.L., LL.D., President, in the Chair. 



A List of the Presents received was laid on the table, and thanks 

 ordered for them. 



The following Papers were read : 



I. "The Nature of the Shoulder Girdle and Clavicular Arch 

 in Sauropterygia." By fl. G. SEELEY, F.R.S. Received 

 January J8, 1892. 



[Publication deferred.] 



II. " On the Origin from the Spinal Cord of the Cervical and 

 Upper Thoracic Sympathetic Fibres, with some Observa- 

 tions on White and Grey Rami Communicantes." By J. N. 

 LANGLEY, M.A., F.R.S., Fellow and Lecturer of Trinity 

 College, Cambridge. Received January 20, 1892. 



(Abstract.) 



The experiments of which an account is given in this paper were 

 made upon anaesthetised cats, dogs, and rabbits. The lower cervical 

 and upper thoracic nerves were tied, cat, and stimulated in the 



