220 Capt. E. W. Creak. Magnetical Results of [June 20, 



Helmholtz (H. von), For. Mem. R.S. Handbucb der Physiologischen 



Optik. Zweite Auflage. Lief. 11. 8vo_ Leipzig 1895. 



'The Publisher. 

 Norman (J. H.) Prices and Monetary and Currency Exchanges of 



the World. 8vo. London 1895. The Author. 



Preston (T.) The Theory of Light. Second edition. 8vo. London 



1895. ' The Author. 



Prince (C. L.) A Record of the Great Frost of January and 



February, 1895. Folio. Lewes 1895. The Author. 



Reid (C.) On Scottish Inter-Glacial Deposits. 8vo. [London] 



1895; [and 2 other Excerpts]. 8vo. The Author. 



Rockhill (W. W.) Diary of a Journey through Mongolia and Tibet 



in 1891 and 1892. 8vo. Washington 1894. 



Smithsonian Institution, Washington. 

 Schiick (A.) Magnetische Beoba,chtungen an der Deutschen Bucht 



der Nordsee. 1894. 8vo. Hamburg 1895. The Author. 



June 20, 1895. 

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



Mr. J. Wolfe Barry, Professor A. G. Bourne, Professor J. R. 

 Green, Mr. E. H. Griffiths, Mr. C. T. Heycock, Professor S. J. Hick- 

 son, Major Holden, Prof. W. MacEwen, Dr. S. Martin, Professor G. M. 

 Minchin, and Mr. W. H. Power were admitted into the Society. 



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

 ordered for them. 



The following Papers were read : 



I. "On the Magnetical Results of the Voyage of H.M.S. 

 'Penguin,' 1890-93." By E. W. CREAK, Captain R.N., 

 F.R.S. Received May 8, 1895. 



(Abstract.) 



In view of the numerous magnetic surveys of different countries 

 which have been made in recent years, it seems important to call 

 attention to the increasing value of magnetic surveys made over that 

 much larger area of the earth, the sea ; the coasts washed by the 

 sea ; magnetic disturbances proceeding from land under the sea, and 

 the settlement of the question of the direction of the iso-magnetics 

 when passing from deep water to the land. 



