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No. 30, Vol. II. January 22, 1881. 



CONTENTS. 



Relief Expedition to the? Jeannette (Edit.); The Warner Prize for a New Comet; The Philosophical Society of Washington; The 

 Roches'er Microscopical Society ; Electric Fish, by the Marchioness Clara Lanza ; Observations on Ice and Icebergs in ihe Polar 

 Regions, by Lieut. F. Schwatka; On Heat Conduction in Highly Rarefied Air, by William Crookes ; Professor Huxley on 

 Evolution; Recent Discoveries R dating to the Double Stars of the Dorpat Catalogue, by S. W. Rurnham ; Swift's Comet (New 

 Determination by Wiaslo* Upton); Astronomical Memoranda (W. C. W.); Announcements; Notes, Physical, Chemical, 

 Astronomical, ete., etc., etc. 



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