VI CONTENTS. 



XIII. A Factor in the Safety of High Speed Torpedo-Boat Destroyers. 



By Georgk Wilson, U.Sc, and A. T. Wfston ... pp. i — 13 



XIV. Hymenoptera Orientalia, or Conlribution.s to the Knowledge 

 of the Hymenoptera of the Oriental Zoological Region. Part 

 IX. The Hymenoptera of the Khasia Hills. Part II. 

 Section 2. By P. Cameron pp. 1—50 



XV. Further Investigation on the Detection and Approximate 

 Estimation of Minute Quantities of Arsenic in Malt, 

 Beer, and Food Stuffs. By William Thomson, 

 F. R.S. E., F.I.C. Plates I ami 3 ... .. ... pp. i~io 



PROCEEDINGS. 



Adamson, a., A.R.C'.S. — A simjjle form of vernier microscope ... xi 



Bailey, Chakles, M.Sc, F.L.S. — Reference to the death of Dr. 



Edward Schunck ... ... ... ... .. ... xviii 



Reference to the death of Sir George Stokes, Bart. ... ... xx 



Bailey, Sir William H. — Exhibit of the model of the switchback 



centrifugal railway invented and made by Richard Roberts vi 



Barnes, C. L., M.A. — Experiments illustrating Hawksbee's law ... viii 



Baron, W. B., M.Sc. — The influence of hydrogen in fuel on the com- 

 position of the resulting flue gases ... ... ... ... xxi 



BicKHA.M, Spencer H., F.L.S. — Exhibit of specimens of Caoutchouc xxxiii 



Brothers, Alfred. — Note on Japanese ' Magic' mirrors xv 



Dawkins, W. Boyd, M.A., D.Sc, F.R.S.— On the discovery of an 

 ossiferous cavern of Pleiocene age, at Dove Holes, Buxton, 

 Derbyshire .. ... ... ... ... ... ... xxv 



HIllison, R. W. — Exhibit of, and remarks on, a series of eggs of the 



Common Guillemot ^f/;7rt /;v?7t'^ ... ... ... ... xi 



Notes on the breeding habits and distribution of the Common 



Buzzard (Btileo vulgaris) in the Northern Counties of 

 England. ( Jl'itli a Plate.) ... ... ... ... ... xxxv 



Faraday W, Baknakii, LL.B. — Exhibit of perforated stones found 



near Kirkhy Lonsdale ... ... ... ... ... xxxii 



