On the Chief Line in the Spectrum of tl \>'d<?. [Feb. 5, 



Observations and Reports (continued). 



Paris : Service Hydrographique de la Marine. Annalcs Hydro- 

 graphiques. Se"r. 2. Annee 1890. 8vo. Paris. 



The Service. 



Service Hydrometrique da Bassin de la Seine. Resume des 

 Observations Centralisees pendant 1'Annee 1889. 8vo. Ver- 

 sailles 1890; Observations sur les Conrs d'Eau et la Pluie 

 Centralisees pendant 1'Annee 1889. Folio. Versailles. 



The Service. 



West Point, N.Y. U.S. Military Academy. Official Register. 

 1890. 8vo. [West Point.] " The Academy. 



February 5, 1891. 

 Sir WILLIAM THOMSON, D.C.L., LL.D., President, in the Chair. 



The Right Hon. William Lawies Jackson, whose certificate had 

 been suspended, as required by the Statutes, was balloted for and 

 elected a Fellow of the Society. 



The Presents received were laid on the table, and thanks ordered 

 for them. 



The following Papers were read : 



I. "On the Chief Line iu the Spectrum of the Nebulas." By 

 J. NORMAN LOCKYER, F.R.S. Received December 18, 1890. 



[Publication deferred.] 



II. "On the Chief Line in the Spectrum of the Nebulse. 

 Reply." By WILLIAM MUGGINS, D.C.L., LL.D., F.R.S. 

 ceived February 5, 1891. 



[Publication deferred.] 



