We will take the case C as an example. The figures that refer to it are
in the lines adjacent to the letter C in the Table. They are those in the
uppermost line, and also those in the line up the left-hand side of the
diagram, and they stand for days' journey and for days respectively. P1
is reached after 1 1/2 day's travel, P2 after 3 days, P3 after 6 days
from camp. The entire party might consist of 5 men, 2 carts (one a very
light one), and four horses, together with one saddle and bridle. The
heavier cart and 2 men and 2 horses would turn back at P1. One of the two
horses of the second cart would be saddled and ridden back by a third man
from P2; and, finally, the remaining cart, single horse, and 2 men, would
turn back, after 6 days, from P3.--The relief party would
originallyconsist of the first cart and 3 horses. On arriving at P1, a
horse and man would be sent back. At P2 it would have more than enough
spare rations to admit of its waiting two whole days for the exploring
cart, if it were necessary to do so.
[Full page diagram as described above].
It will be seen from the Table that as 6 days' journey is the limit to
which C can explore, so 4 days' journey is the limit for B, and 2 days
for A. But where abundance of provision is secured at P2 by means of a
relief party, the explorers might well make an effort and travel on half
rations to a greater distance than the limits here assigned.
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