NATURE 



\yan. 30, 1879 



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Contents. 

 I. "Progress" — The Alleged iJistinction between Man and Brute. 

 II. Matter Dead — Roger Bacon and John Dalton. 



III. A Contribution to the History of Electric Lighting. By \V. 



Mattieu Williams, F.C.S , F.R.A.S. 



IV. The Problem of FLght — Ballooning in Arctic Exploration. 

 V. Electric Lighting. By Prof. W. E. Ayrton. 



I ^ VI. Instinct or Reas n ? 



VII. New Achromatic Microscope. 

 VIII. Safe Anaesthesia. 

 IX. On the Transmissi )n of Power by Means of Electricity. By Profs. 



Elihu Th.inison and Edwin J. Houston. 

 Correspondence — The Band-Pattern m Animals — The Sea-Serpent. 

 Reviews of Scientific Works — Science Notes — Proceedings of Scientific 

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