

Vol. 42 : Part I. 



MEMOIRS AND PROCEEDINGS 



OF 



THE MANCHESTER 

 LITERARY & PHILOSOPHICAL 



SOCIETY, 



1897-98. 



CONTENTS. 



Memoirs :— 



I. Notes on a Coljection of Hymenoptera from Greymouth, 

 New Zealand, with descriptions of New Species. By 

 Peter Cameron pp. 1—53. 



II. Description of two New Species of Mutilla from South Africa. 



By Peter Cameron pp. 1—3. 



III. On Waves in a Medium having a Periodic Discontinuity of 



Structure. By Horace Lamb, M. A., F.R.S. - pp. 1—20. 



Proceedings pp. i.— xvi. 



MANCHESTER: 

 36, GEORGE STREET. 



price Zwo SbllUngs anO Sixpence. 



