r hand, the
advantages of pyroxyle consist in this, that it is not injured by damp,
that it does not make the gun-barrels dirty, and that its force is four
times that of ordinary powder.

To make pyroxyle, the cotton must be immersed in the fuming azotic acid
for a quarter of an hour, then washed in cold water and dried. Nothing
could be more simple.

Cyrus Harding had only at his disposal the ordinary azotic acid and not
the fuming or monohydrate azotic acid, that is to say, acid which emits
white vapors when it comes in contact with damp air; but by substituting
for the latter ordinary azotic acid, mixed, in the proportion of from
three to five volumes of concentrated sulphuric acid, the engineer
obtained the same result. The sportsmen of the island therefore soon
had a perfectly prepared substance, which, employed discreetly, produced
admirable results.

About this time the settlers cleared three acres of the plateau, and
the rest was preserved in a wild state, for the benefit of the onagers.
Several excursions were made into the Jacamar Wood and the forests of
the Far West, and they brought back from thence a large collection of
wild vegetables, spinach, cress, radishes, and turnips, which careful
culture would soon improve, and which would temper the regimen on which
the settlers had till then subsisted. Supplies of wood and coal were
also carted. Each excursion was at the same time a means of improving
the roads, which gradually became smoother under the wheels of the cart.

The rabbit-warren still continued to supply the larder of Granite House.
As fortunately it was situated on the other side of Creek Glycerine,
its inhabitants could not reach the plateau nor ravage the newly-made
plantation. The oyster-bed among the rocks was frequently renewed and
furnished excellent molluscs. Besides that, the fishing, either in
the lake or the Mercy, was very profitable, for Pencroft had made some
lines, armed with iron hooks, with which they frequently caught fine
trout, and a species of fish whose silvery sides were speckled with
yellow, and which were also extremely savory. Master Neb, who was
skilled in the culinary art, knew how to vary agreeably the bill of
fare. Bread alone was wanting at the table of the settlers, and as has
been said, they felt this privation greatly.

The settlers hunted too the turtles which frequented the shores of
Cape Mandible. At this place the beach was covered with little mounds,
conce