PROCEEDINGS OF 

 THE BOYAL SOCIETY. 



vol. xxi. No. 144. 



CONTENTS. - 



April 24, 1873. 



PAGE 



I. On the Durability and Preservation of Iron Ships, and on Riveted Joints. 



By Sir William Faiebaien, Bart., F.R.S . . 259 



II. On the Employment of Meteorological Statistics in determining the best 



Course for a Ship whose Sailing Qualities are known. By Feancis « 

 Galton, F.R.S. 263 



May 1, 1873. 



List of Candidates for Election into the Society 274 



I. On the Condensation of a Mixture of Air and Steam upon Cold Surfaces. 

 By Osboene Reynolds, M.A., Fellow of Queen's College, Cambridge, 

 and Professor of Engineering in the Owens College, Manchester . . . 275 

 II. On the direct Synthesis of Ammonia. By W. F. Donkin 281 



III. On the Effect of Pressure on .the Character of the Spectra of Gases. By 



C. H. Steaen and G. H. Lee . - . . . . 282 



May 8, 1873. 



I. The Action of Light on the Electrical Resistance of Selenium. By Lieut. 



Sale, R.E 283 



II. Researches in Spectrum -Analysis in connexion with the Spectrum of the 



Sun. — No. II. By J. Noeman Lockyee, F.R.S 285 



[For continuation of Contents see 4sth page of Wrapper.^ 



NOTICE. 



A Meeting of the Government- Grant Committee will be held this month (June). 

 It is requested that applications to be considered at that Meeting be forwarded 

 immediately to the Secretary of the Royal Society. 



