FIG. ILLUSTRATIONS 1. Larva of Chorocampa porcellus . 2. Bougainvillea fruticosa; natural size. (After Allman) 5. Medusa aurita, and progressive stages of development. 17. Diagram to illustrate the formation of Mountain Chains 18. Section across the Jura from Brenets to Neuchâtel. (After 216 19. Section from the Weisstock across the Great Ruchen to the Maderanerthal. e, Eocene; j, Jurassic; b, Bündnerschiefer. c, Crystalline Schist 20. Glacier of the Blümlis Alp. (After Reclus) 21. Cotopaxi. (After Judd). 22. Lava Stream. (After Judd) 221 228 23. Stromboli, viewed from the north-west, April 1874. PAGE (After Judd). 242 24. Upper Valley of St. Gotthard 255 25. Section of a river valley. The dotted line shows a slope or talus of debris 258 26. Valley of the Rhone, with the waterfall of Sallenches, showing a talus of debris . 259 27. Section across a valley. A, present river valley; B, old river terrace. 260 28. Diagram of an Alpine valley, showing a river cone. Front view. 261 29. Diagram of an Alpine valley, showing a river cone. Lateral view 263 30. Map of the Valais near Sion 264 31. View in the Rhone Valley, showing a lateral cone 265 32. Do. cone showing the slope of a river 266 267 269 271 33. Shore of the Lake of Geneva, near Vevey 34. View in the district of the Broads, Norfolk 35. Delta of the Po 38. Section of the Weald of Kent. a, a, Upper Cretaceous strata, chiefly Chalk, forming the North and South Downs; b, b, Escarpment of Lower Greensand, with a valley between it and the Chalk; c, c, Weald Clay, forming plains; d, Hills formed of Hastings Sand and Clay. The Chalk, etc., once spread across the country, as shown in the dotted lines 39. Map of the Weald of Kent 272 279 281 282 43. River system round Chur, as it used to be 306 48. Diagrammatic section of a valley (exaggerated). R R, rocky basis of a valley; A A, sedimentary strata ; B, ordinary level of river; C, flood level 50. A group of Lunar Volcanoes; Maurolycus, Barocius, etc. (After Judd). 51. Orbits of the inner Planets. (After Ball) 52. Relative distances of the Planets from the Sun. (After Ball) 53. Saturn, with the surrounding series of rings. (After Lockyer) 54. The Parallactic Ellipse. (After Ball) 55. Displacement of the hydrogen line in the spectrum of Rigel. (After Clarke) PAGE 307 309 315 316 327 357 378 386 387 393 411 414 SUMMIT OF MONT BLANC THE MER DE GLACE, MONT BLANC RYDAL WATER. (From a photograph by Frith and Co., published by Spooner 179 |