CONTENTS 



MEMOIRS. 



I. The Palseontology of the Manx Slates of the Isle of Man. Plate i. 



By Herbert Bolton, F.R.S.E. pp. i— 15 



II. {a) Further Research on the Structure of Psaronius, a Tree Fern 

 of the Coal-Measures, {b) On the Leaf-Sheath surrounding 

 the Nodes of some of the Calamites of the Lancashire Coal- 

 Measures. Plate 2. By John Butterworth, F.R.M.S. 



pp. 1—8 



III. Hymenoptera Orientalia, or Contributions to a knowledge of 



the Hymenoptera of the Oriental Zoological Region. Part 

 VIII. The Hymenoptera of the Khasia Hills. First Paper. 

 Hate 3. By Peter Cameron pp. 1 — 220 



IV. The newly-discovered Elements ; and their Relation to the 



Kinetic Theory of Gases. (The Wilde Lecture. ) By William 

 Ramsay, Ph.D., F.R.S pp. i — 19 



V. On the Slipperiness of Ice. By Osborne Reynolds, M.A., 



LL.D.,F.R.S pp. 1—7 



VI. The Plague in Uganda. By the Right Rev. Bishop Hanlon, 



Uganda ... ... ... ... ... ... ... pp. i — 3 



VII. A New Version of Argand's Proof that every Algebraic Equation 



has a Root. By Horace Lamb, M. A., F.R.S. ... pp. 1—4 



VIII. Some Preliminary Experiments on the Effect of Pressure on 



Thermal Conductivity. By Charles H. Lees, D.Sc. pp. i — 6 



IX. Description of a genus and species, probably representing a new 



tribe of Hymenoptera from Chili. By Peter Cameron, pp. i — 5 



X. Experiments on the Relation between Uniform Stress and 

 Permanent Strain in Annealed Copper Bars and Wires. By 

 George Wilson, M.Sc pp. i — 18 



XL On Calinaga, the single Genus of an aberrant Sub-Family of 



Butterflies. Plates 4 to 6. By John Watson. ... pp. i — 23 



XII. On a Biological Aspect of Cancer. By F. J. Faraday, 



F.L.S. . pp. I— 14 



