vi. 



CONTENTS. 



Memoirs (continued). 



PAGE 



XIII. Hymenoptera Orientalia, or Contributions to a knowledge 



of the Hymenoptera of the Oriental Zoological Region. 

 Part VI. Plate 16. By Peter Cameron.. .. pp. 1-27 



XIV. The Composition of some Ancient Iron Implements and a 



Bronze found at Thebes. By Arthur Harden, M.Sc, 

 Ph.D. . . . . . . . . . . . . . . pp. 1-3 



XV. On the Nature of the Rontgen Rays. (The Wilde Lecture.) 



By Sir George G. Stokes, Bart., M.A., LL.D., 

 F.R.S. .. .. .. .. .. .. .. pp. 1-28 



PROCEEDINGS. 



Bailey, Charles, F.R.S. — On so-called Carnivorous Plants . . vii. 



Barnes, C. L., M.A. — On some Errors in Science .. .. .. xv. 



Bennett, Alfred R., M.I.E.E. — A Convection Scope and Calori- 



meter* • * • • •• • • *• • ■ xxvii. 



Bowman, F. H., D.Sc. — On the Method of Working the Marconi 



Telegraph Receiver . . . . . . . . . . . . xxxi. 



Chaffers, Mr. — Exhibit of "Plankton," and PlolothuridcC. .. xxxiv. 



Chorlton, Mr.— On a Swarm of Dung-beetles at King Arthur's 



Castle . . . . . . . . . . . . . . . . xxvi. 



Coward, T. A. — Exhibit of Eggs of the Cuckoo (Cuculus canovus.). . vi. 



Crabtree, B. H — Exhibit of a Collection of British Clearwings . . xxiv. 



Faraday, F. J., F.L.S. — On the Pont du Gard, in relation to the 



Theories of the Erosion of River Valleys . . . . . . xviii. 



Exhibit of Photograph of the Pont du Gard xx. 



Fisher, H. — Exhibit of a Collection of Arctic Plants from the 



Franz Josef Archipelago . . . . . . xxii. 



Griffiths, Albert, M.Sc— On the Viscosity and Electrolytic 



Resistance of a Gelatine Solution .. .. .. . . ix. 



On a Mixture whose Electric Resistance depends on the 



Magnetic Field in which it is placed.. .. .. xi. 



Gwyther, R. F., M.A. — Exhibit of two Distribution-curves show- 

 ing the comparative results of Examinations in Mathematics 

 for Three Years .. .. .. .. .. .. .. xiii. 



Hickson, Sydney J., M.A., D.Sc, F.R.S.— Exhibit of Two Black- 

 bird's Eggs, one without yolk, the other with two yolks . . xviii. 



I 



