ILLUSTRATIONS.
The Mer de Glace.—Showing the Cleft Station at Trélaporte, the Echelets, the Tacul, the Périades, and the Grand Jorasse.[Frontispiece]
Fig.Page
[1]. Ice Minaret[14]
[2]. Diagram of an angular reflector[16]
[3], [4]. Boats' sails inverted by Atmospheric Refraction[35]
[5]. Wave-like forms on the Mer de Glace[43]
[6]. Glacier Table[44]
[7]. Tributaries of the Mer de Glace[53]
[8]. Magnetic Boulder of the Riffelhorn[143]
[9], [10], [11], [12]. Luminous Trees projected against the sky at sunrise[180], [181]
[13]. Snow on the Pines[201]
[14], [15]. Snow Crystals[214]
[16]. Chasing produced by waves[233]
[17]. Diagram explanatory of Interference[234]
[18]. Interference Spectra, produced by DiffractionTo face [235]
[19]. Moraines of the Mer de Glace" [264]
[20]. Typical section of a glacier Table[266]
[21]. Locus of the Point of Maximum Motion[286]
[22]. Inclinations of ice cascade of the Glacier des Bois[313]
[23]. Inclinations of Mer de Glace above l'Angle[314]
[24]. Fantastic Mass of ice[316]
[25]. Diagram explanatory of the mechanical origin of Crevasses[318]
[26]. Diagram showing the line of Greatest Strain[319]
[27a, b]. Section and Plan of a portion of the Lower Grindelwald Glacier[322]
[28]. Diagram illustrating the crevassing of Convex Sides of glacier[323]
[29]. Diagram illustrating test of viscosity[326]
[30], [31], [32], [33]. Moulds used in experiments with ice[346]-[348]
[34]. Liquid Flowers in lake ice[355]
[35]. Dirt-bands of the Mer de Glace, as seen from a point near the FlégèreTo face [367]
[36]. Ditto, as seen from les Charmoz" [368]
[37]. Ditto, as seen from the Cleft Station, Trélaporte" [369]
[38]. Plan of Dirt-bands taken from Johnson's 'Physical Atlas'[374]
[39]. Veined Structure on the walls of crevasses[381]
[40]. Figure explanatory of the Marginal Structure[383]
[41]. Plan of part of ice-fall, and of glacier below it (Glacier of the Rhone)[386]
[42]. Section of ditto[386]
[43]. Figure explanatory of Longitudinal Structure[388]
[44]. Structure and bedding on the Great Aletsch Glacier[391]
[45], [46]. Structure and Stratification on the Furgge glacier[394]
[47]. Diagram illustrating Differential Motion[395]
[48], [49]. Diagrams explanatory of the formation of Ripples[400], [403]
[50], [51]. Appearance of a prism of ice partially liquefied by Pressure.[410]
[52], [53]. Figures illustrative of compression and liquefaction of ice.[411]
[54], [55]. Sections of White Ice-seams[414]
[56], [57]. Variations in the Dip of the Veined Structure[414], [415]
[58]. Section of three glacier Crumples[416]
[59]. Wall of a crevasse, with incipient crumpling[416]
[60]. Plan of a Stream on the Glacier du Géant[418]
[61]. Plan of a Seam of White Ice on ditto[418]
PART I.
CHIEFLY NARRATIVE.
Ages are your days,
Ye grand expressors of the present tense
And types of permanence;
Firm ensigns of the fatal Being
Amid these coward shapes of joy and grief
That will not bide the seeing.
Hither we bring
Our insect miseries to the rocks,
And the whole flight with pestering wing
Vanish and end their murmuring,
Vanish beside these dedicated blocks.
Emerson