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Vol. I, No. 25. - . - ----- December 18, 1880. 



CONTENTS. 



I ellowships at the Johns Hopkins University (Edit.); A New Count; On the Superficial Viscidity of Liquids, translated from the 

 French of .J. Plateau, by The Marchioness Clara Lanza ; On the Structure of theOrane Outane, by Henry C. Chapman, M.D.; On 

 the Origin of Anthracite, by Or. T. Stcrry Hunt ; The Niniravid;r and Miocene Canid;u, by Prof. Edward O. Cope; On Photo 



trephine the Nebula in Orion, by Prof. Henr) Draper; Electro- Motive Force of the Brush Dynamo Electric Machine, by Prof. 

 Henry Morton ; Application of the Photophone to the study of the Noises taking place on the Surface of the Sun ; Lecture Pho- 

 tophone; Swift's Comet, by VV. C. Winlock ; The " Almacantar "; Priority in the hi vent ion of Binocular Microscopes ; The Color 

 of Flowers; The Herbarium ot the late Col. Stephen T. Olney, Providence; Books Received; Announcements; Notes, Astro 

 nomical, Microscopical, Physical, Chemical, Botanical, etc., etc., etc. 



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