580 A Geological Idea of Lord Bacon's. [October, 
at the north it coincides with segment Af to the extent of 
— i — — — of all land. It has for basis L , Ap, V : its 
2978x2*83 2 
east is at the north limited by M, Ap, I, as that of segment 
Pr is indicated by V, Pr, L. It joins all through the north 
of segment Af, which occupies the prototypic position, and 
ocean circulation so is barred, reversed, and interned. 
The more segments Ap and Af were moved north, and the 
former advanced together with the coinciding portion of Ap 
and Af into the arCtic circle, and the cut-off and trans- 
forming end of Pr moved south, the greater became the 
pressure of the intervening sea from west to east against 
the north of Af. The north of Ap was therefore more ad- 
vanced west to east toward S than the north of Pr is 
advanced toward L. Ap had for leaving west only half the 
room of Pr, — 90° of longitude against 180°. 
This reciprocity increased the pressure from north to 
south ; the southern reflux became compressed in the deep, 
in the direction V, and all through until it had got past the 
southern and northern section of Ap in going west, when it 
again gained room for an expansion which not only pushed 
the southern section of Af most of all to north, but also to 
west, in reciprocity of the motion of the north of Ap to 
east. Segment Af so retained its prototypic position, and 
the western part of its southern section bulged out towards 
the interval dividing the pericentric segment. The west of 
its north section, divided from the south section by an ocean 
basin attaining to 34 0 12' + io° 44' latitude for the mean (Genoa 
and Adriatic), was stretched out and pointed to west by the 
sea reversed from Pr (respectively Panama), and formed the 
triangle of that large continent into which it became united, 
with the north of segment Ap as oblong. Af, more com- 
pressed from south and north, became the shortest, widest, 
and highest of the three segments. 
The southern points of the three continental masses 
divide longitude from segment Pr west to Ap, and back to 
Pr 1 : V2*83, and from segment Af west to Pr, to remainder 
1 : 2*83. 
They also follow a regular progression in their distance 
from Pr. Segment Pr, freed from the antarCtic land, is 
from Ps 23° 28' + io° 44' = 34° 14', leaving to the equator 
55 0 46', the latitude of Cape Horn. Segment Ap should be 
from Ps 23 0 28' + (io° 44' x 2) =44° 56', leaving 45 0 4 to the 
equator, but Van Diemen’s land reaches only to 43 0 40' S. 
lat. ; the deficiency of i° 24' is at once corrected by New 
Zealand reaching beyond 45 0 4'. 
