Fourth S&ries. 



Vol. 2 : No. 4. 



MEMOIRS AND PROCEEDINGS 



OF 



THE MANCHESTER 



LITERARY & PHILOSOPHICAL 

 SOCIETY. 



1888-9. 



CONTENTS. 



Coloured Chart to illustrate Dr. Hodgkinson's paper on the 



Structure of Coloured Bodies. To face - - - - p. 212 



Proceedings pp. 215, 220, 226, 234, 236 



Microscopical and Natural History Section - - pp. 213^ 224, 267 



Physical and Mathematical Section p. 214 



Memoirs : — 



On Leaves found in the Cutting for the Manchester Ship 

 Canal, 21 feet under the Surface, and on Green 

 Colouring Matter contained therein. By William 

 Thomson, F.R.S. Ed., &c. JVM Plate - - - p. 216 

 On Sound propagated through an atmosphere, in which 

 the surfaces of constant density are parallel planes, 

 in a direction perpendicular to those planes. By 

 Ralph Holmes, B.A. - - - - - - p, 221 



Notes on Seedling Saxifrages grown at Brockhurst, 

 from a single scape of Saxifraga Macnabiana. By 

 William Brockbank, F.L.S., F.G.S. - - - p. 227 

 On the Green Colouring Matter from Leaves found in 

 one of the Cuttings of the Manchester Ship Canal. 

 By Edward Schunck, Ph.D., F.R.S. - - - p. 231 

 On an old Canoe recently found in the Irwell Valley, 

 near Barton, with observations on Pre-historic Chat 

 Moss. By Mr. Alderman W. H. Bailey. IFM 

 t7uo Plates -------__ p. 243 



Annual Report of the Council p. 252 



List of the Council and Members p. 270 



Title Page and Index to the Volume. 



MANCHESTER : 

 36, GEORGE STREET 



price, CTbrce Sbillfttfls. 



