I have sat down before it as a besieger before a fortress, to make my approaches with the same systematic regularity.

I must cut hay and send forage and water in advance, as far as I can.

I have the means of taking sixteen days' water and feed for two horses and three men; and if I can throw my supplies one hundred miles in advance, I shall be able to go two hundred miles more beyond that point, at the rate of thirty miles a-day, one of us walking whilst two rode.
Surely at such a distance some new feature will open to reward our efforts! My own opinion is, that an inland sea will bring us up ere long--then how shall we get the boat upon it?
'Why,' you will say, 'necessity is the mother of invention.' You will find some means or other, no doubt; and so we will.

However, under any circumstances, depend upon it I will either lift up or tear down the curtain which hides the interior from us, so look out for the next accounts from me as of the most interesting kind, as solving this great problem, or shutting the door to discovery from this side the continent for ever.
"P.S.

Poole has just returned from the ranges.