I
Ice—
First meeting with, I, 106.
Hummock, highest climbed, II, 218.
Impracticability for sledge expedition,
Nansen’s consideration on possibility of, I, 584.
Lanes in, I, 455; II, 183, 212, 215, 220, 230.
Organisms contained in, I, 290, 502, 503, 514, 515.
Rate of formation, I, 304, 398, 457.
Roughness of surface during late spring weather, I, 449.
Rubble-ice, II, 168.
Sea-ice only encountered, except under land, II, 184 (Note).
Shore-ice, II, 242.
Siberia, ice-drift from, II, 140, 190, 708.
Stratified formation, I, 401.
Temperature, I, 463.
Thickness of ice under the Fram during drift, I, 459.
Thirst quenched by sucking ice, II, 151 (Note).
Water for cooking, better than snow, II, 228 (Note).
White reflection from, I, 148.
Winds strongly influencing ice-drift, II, 711.
Icebergs, II, 344, 350.
Ice-blasting, I, 343; II, 642, 652, 667, 686.
Ice-foot, II, 518 (Note).
Ice-gull, II, 617.
Ice-mews, I, 468.
Ice-pressure, I, 271, 272, 277, 279, 292, 304, 307, 308, 313, 352, 369, 381, 397, 398, 408; II, 28, 37, 38, 39, 42, 65, 66, 602, 610, 613, 638, 652, 662, 669, 693.
Blasting, II, 642, 652.
Fram freed from, II, 700.
Preparations for abandonment of the Fram on occasion of severe ice-pressure, II, 47.
Removal of high pressure-ridge, II, 605.
Infusoria found in ice-water, I, 515.
Inglefield, Sir E., favorable view of proposed expedition, I, 45.
Instruments for scientific observations—
Fram equipment, I, 72.
Sledge expedition, II, 124.
Iövenskiold, C., contribution to expedition, I, 55.
Ivory gulls, II, 237, 244, 248, 266, 303, 313, 326, 341, 350, 379, 386, 475.