[13.]—Expedition of 1858.[92]

Origin and aim of the expedition; Laminated Structure of the ice

[14.]—Passage of the Strahleck.[93]

Unpromising weather; appearance of the glacier and of the adjacent mountains; Transverse Protuberances; Dirt Bands; Structure; a Slip on a snow slope; the Finsteraarhorn; the Schreckhorn; extraordinary Atmospheric Effects; Summit of the Strahleck; Grand Amphitheatre; mutations of the clouds; descent of the rocks; a Bergschrund; fog in the valley; descent to the Grimsel

[15.][99]

Ancient Glaciers in the valley of Hasli; Rounded, Polished, and Striated Rocks; level of the ancient ice; Groovings on the Grimsel Pass; glacier of the Rhone; descent of the Rhone valley; the Æggischhorn; Cloud Iridescences; the Aletsch glacier; the Märjelen See; Icebergs; Tributaries of the Aletsch; Grand glacier-region; crevasses; a chamois deceived

[16.]—Ascent of the Finsteraarhorn.[104]

Character of my Guide; iridescent cloud; evening on the Faulberg; the Jungfrau and her neighbours; a Mountain Cave; the Jungfrau before dawn; contemplated visit; the Grünhorn Lücke; Magnificent Corridor; sunrise; névé of the Viesch glacier; halt at the base of the Finsteraarhorn; Spurs and Couloirs of the mountain; Pyramidal Crest; scene of Agassiz's observations; a hard climb; discipline of such an ascent; Boiling Point; Registering Thermometer, its fate; daring utterance; descent by glissades; the Viesch glacier; hidden crevasses; a brave and competent guide

[17.] [119]

Subsequent days at the Æggischhorn; Afloat on the Icebergs; Bedding and Structure; Ancient Moraines of the Aletsch; Scratched Rocks; passage of the mountains to the end of the glacier; a wild gorge; arrival at Zermatt; the Riffelberg