Fourth Series. Vol. 5 : No. 1. 



MEMOIRS AND PROCEEDINGS 



OF 



THE MANCHESTER 



LITERARY & PHILOSOPHICAL 



SOCIETY. 



1891-92. 



CONTENTS. 



Proceedings - - - pp. 1, 10, 54, 60, 77, 92, 138, 141, 147 

 Natural History and Microscopical Section - pp. 10, 60, 90, 95, 140, 146 



Memoirs : — 



On the Decomposition by Shock of Endothermic Com- 

 pounds. By J. A. Harker, Dalton Chemical Scholar, 

 and H. B. Dixon, F.R.S.. Professor of Chemistry 

 in the Owens College - - p. 12 



Experiments on the Transmission of Explosions across 

 Air Gaps. By Bevan Lean, B.Sc, Dalton Chemical 

 Scholar, and Harold B. Dixon, F.R.S., Professor of 

 Chemistry in the Owens College - - - - p. 16 



The 143 six-letter functions given by the first transitive 

 maximum groups of six letters, with full exhibition 

 of the values of the functions. By the Rev. Thos. 

 P. Kirkman, M.A., F.R.S. p. 23 



Notes on Sewage Precipitation. By Harry Grimshaw, 



F-C.S. - - - p. 55 



On the Permians of the N.W. of England. Discovery of 

 Two Plant Beds in the St. Bees Sandstone, at 

 Hilton, Westmorland. With Plates. By William 

 Brockbank, F.G.S., F.L.S. p. 66 



On the Interchange of Two Differential Resolvents. By 

 the Rev. Robert Harley, M.A., F.R.S., Corres- 

 ponding Member P- 79 



Hymenoptera Orientalis ; or Contributions to a knowledge 

 of the Hymenoptera of the Indian Zoological Region. 

 With Plate. By P. Cameron. Communicated by 

 John Boyd - - - - - - - - - p. 97 



MANCHESTER: 

 36, GEORGE STREET. 



flMfce Seven Sbillfngs. 



