readily apprehend.

* * * * *

The dust, though very thin and flighty above-decks, lay thickly
deposited below, and after having made a tour of investigation
throughout the ship, the first thing which I did was to examine
that--though I had tasted nothing all day, and was exhausted to death. I
found my own microscope where I had left it in the box in my berth to
starboard, though I had to lift up Egan to get at it, and to step over
Lamburn to enter the chart-room; but there, toward evening, I sat at the
table and bent to see if I could make anything of the dust, while it
seemed to me as if all the myriad spirits of men that have sojourned on
the earth, and angel and devil, and all Time and all Eternity, hung
silent round for my decision; and such an ague had me, that for a long
time my wandering finger-tips, all ataxic with agitation, eluded every
delicate effort which I made, and I could nothing do. Of course, I know
that an odour of peach-blossom in the air, resulting in death, could
only be associated with some vaporous effluvium of cyanogen, or of
hydrocyanic ('prussic') acid, or of both; and when I at last managed to
examine some of the dust under the microscope, I was not therefore
surprised to find, among the general mass of purplish ash, a number of
bright-yellow particles, which could only be minute crystals of potassic
ferrocyanide. What potassic ferrocyanide was doing on board the _Boreal_
I did not know, and I had neither the means, nor the force of mind,
alas! to dive then further into the mystery; I understood only that by
some extraordinary means the air of the region just south of the Polar
environ had been impregnated with a vapour which was either cyanogen, or
some product of cyanogen; also, that this deadly vapour, which is very
soluble, had by now either been dissolved by the sea, or else dispersed
into space (probably the latter), leaving only its faint after-perfume;
and seeing this, I let my poor abandoned head drop again on the table,
and long hours I sat there staring mad, for I had a suspicion, my God,
and a fear, in my breast.

* * * * *

The _Boreal,_ I found, contained sufficient provisions, untouched by
the dust, in cases, casks, &c., to last me, probably, fifty years. After
two days, when I had partially scrubbed and boiled the filth of fifteen
months from my skin, and solaced myself with better food, I overhauled
her thorou