The ice was excessively fissured; we crossed crevasses and crept round slippery ridges, cutting steps in the ice wherever climbing was necessary.

I cautioned the drivers to keep close to their sledges and we must have passed over a good many crevasses undiscovered by us, thanks to ski, and by the dogs owing to the soft snow.

I pushed on as best I could, jumping innumerable crevasses, and for every hundred rods or so of direct advance traveling a mile in doubling up and down in the turmoil of chasms and dislocated ice-blocks.

We had therefore to make detours to avoid the wide crevasses which, below, expanded into large basins.

The faint blue line across the upper névé, scarcely distinguishable to the eye, represents to one observer nothing but a trifling undulation; a second, perhaps, knows that it means a crevasse; the mountaineer remembers that it is the top of a huge chasm, thirty feet across, and perhaps ten times as deep, with perpendicular sides of glimmering blue ice, and fringed by thick rows of enormous pendent icicles.

We had some difficulty in negotiating the crevasses, but Gamarra was the only one actually to fall in, and he was easily pulled out again.

We reached the gigantic crevasse at 7.35.

So far, since we got amongst the disturbances we have not seen such alarming crevasses as I had expected; certainly dogs could have come up as far as this.

We have not struck a crevasse all day, which is a good sign.

Late in the march we turned more to the north and again encountered open crevasses across our track.

MORAINES, masses of rock which become detached from the hill-side and find lodgment on a glacier are so called, and are further described as lateral, medial, terminal, or ground moraines, according as they lie along its edges, its middle, are piled up in mounds at its end, or falling down crevasses, are ground against the rock underneath.

Then, tracing it down, I found it joined the same crevasse at the lower end also, maintaining throughout its whole course a width of forty to fifty feet.