Fourth Series. Vol. i : No. 3. 



MEMOIRS AND PROCEEDINGS 



OF 



THE MANCHESTER 



LITERARY & PHILOSOPHICAL 



SOCIETY. 



1887-8. 



CONTENTS. 



Proceedings PP- 90> 93> 104 



Microscopical and Natural History Section - - - pp. 88, 99 

 Physical and Mathematical Section - - - - - p. 89 

 Memoirs :— 



An application of Huyghens' Principle to a spherical 



wave of light. By R. F. Gwyther, M.A. - - p. 61 

 Notes on a Small Collection of Mosses from Mauritius. 



By J. Cosmo Melvill, M.A., F.L.S. - - p. 100 



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