CONTENTS. 



I. — Report on some of the Physical Properties of Fresh Water and of Sea 



Water. 



By Professor P. G. Tait. 

 (The Manuscript was received ?>lst May 1888.) 



II. — Report on Atmospheric Circulation, based on the Observations made 

 on board H.M.S. Challenger during the years 1873-1876, and other 

 Meteorological Observations. 



By Alexander Buchan, M.A., LL.D. 



(The Manuscript was received in Instalments between 2nd March 1888 



and 21st October 1889.) 



III. — Report on the Magnetical Results obtained by H.M.S. Challenger during 



the years 1873-1876. 



By Staff-Commander E. W. Creak, R.N., F.R.S. 



(Tlie Manuscript was received in Instalments between 5th March 



and 6th June 1888.) 



IV. — Report on the Rock Specimens collected on Oceanic Islands during the Voyage 

 of H.M.S. Challenger during the years 1873-1876. 



By Professor A. Renard, LL.D., Ph.D., F.G.S., Hon. F.R.S.E., etc., of the 

 University of Ghent, Belgium. 



(TJie Manuscript was received 6th and 14th April 1888.) 



