beneath
its surface.

A tow-net is filled with diatoms in a very short space of time,
showing that the floating plant life is many times richer than that
of temperate or tropic seas. These diatoms mostly consist of three
or four well-known species. Feeding on these diatoms are countless
thousands of small shrimps (_Euphausia_); they can be seen swimming at
the edge of every floe and washing about on the overturned pieces. In
turn they afford food for creatures great and small: the crab-eater
or white seal, the penguins, the Antarctic and snowy petrel, and an
unknown number of fish.

These fish must be plentiful, as shown by our capture of one on an
overturned floe and the report of several seen two days ago by some men
leaning over the counter of the ship. These all exclaimed together,
and on inquiry all agreed that they had seen half a dozen or more a
foot or so in length swimming away under a floe. Seals and penguins
capture these fish, as also, doubtless, the skuas and the petrels.

Coming to the larger mammals, one occasionally sees the long lithe
sea leopard, formidably armed with ferocious teeth and doubtless
containing a penguin or two and perhaps a young crab-eating seal. The
killer whale (_Orca gladiator_), unappeasably voracious, devouring
or attempting to devour every smaller animal, is less common in the
pack but numerous on the coasts. Finally, we have the great browsing
whales of various species, from the vast blue whale (_Balaenoptera
Sibbaldi_), the largest mammal of all time, to the smaller and less
common bottle-nose and such species as have not yet been named. Great
numbers of these huge animals are seen, and one realises what a demand
they must make on their food supply and therefore how immense a supply
of small sea beasts these seas must contain. Beneath the placid ice
floes and under the calm water pools the old universal warfare is
raging incessantly in the struggle for existence.

Both morning and afternoon we have had brilliant sunshine, and
this afternoon all the after-guard lay about on the deck sunning
themselves. A happy, care-free group.

10 P.M.--We made our start at eight, and so far things look well. We
have found the ice comparatively thin, the floes 2 to 3 feet in
thickness except where hummocked; amongst them are large sheets from
6 inches to 1 foot in thickness as well as fairly numerous water
pools. The ship has pushed on well, covering at least 3 miles an hour,
though occas