region, avoiding death only by motion and distance, until some oasis can
be found."

Not a cheerful description certainly! Every day's Northing, however,
would take us further in or out of this region, as the case might be, and
fervently we hoped for the latter. Whatever country was before us we were
firmly determined to push on, and by the grace of God to overcome its
difficulties. Again referring to Giles's journal I find that during this
part of his journey--viz., near the range where we were now camped--the
change of temperature during night and day was very excessive. At night
the thermometer registered 18 degrees F., whilst the heat in the daytime
was most oppressive. This, in a less degree, was our experience, for the
month being September the days were hotter and the nights less cold. No
doubt this extreme change in temperature, combined with the dry
atmosphere and the tremendous heat of the sun, has caused the hills to be
weathered away in the remarkable shapes of which McPherson's Pillar is a
good example. The pillar is formed of a huge square block of red rock,
planted on the top of a conical mound, perhaps fifty feet in height,
whose slopes are covered with broken slabs and boulders. This remarkable
landmark, which, from the North, is visible from twenty-four miles
distant, I named after Mr. McPherson, a well-known and respected
prospector, who, though leaving no record of his journey, crossed the
Colony from West to East, visiting the hills and waters on Forrest's
route as far East as the Parker Ranges, and thence striking Giles's route
at the Alfred and Marie, and so VIA the Rawlinson into Alice Springs, on
the overland telegraph line. Though little of his journey was through new
country, yet it had the valuable result of proving the non-existence of
auriferous country in the belt traversed.

Due West of the Pillar, distant two and a half miles, situated in a