530 A Geological Idea of Lovd Bacon's. [September, 
south and north symmetrically with west and east. The 
density of sea to land is i : 2'83 ; the extent of land to sea 
is i : 2*83 ; the land south to north is 1 : 2*83 (altered by 
tertiary reasons into 1 : 273). The sum of the parallels of 
45' cuts 1 land to 2*83 sea ; the land arc at the south is to 
that at the north as roi : 11*07, as the height of the polar 
zones to that of the remaining sphere. 
A planet or moon does not uniformly describe an ellipsis, 
but a chain of waves with varying velocities. Thus is the 
motion of ocean rings round an eccentric planet perturbed 
in longitude and latitude. From the first these rings 
must have accommodated themselves to the continents they 
raised. 
The circulation of the ocean, and with it the vibration of 
the land, has been decomposed into four intertwining rings, 
two equatorial, two polar ; and their normal mean orbits, or 
lines of intensity, from which the water is made to deviate, 
present, drawn through sea and land, four great curves, 
whose apsides we find by reasoning and by the distribution 
of sea and land. 
We had as equatorial pericentre of the inner earth, Pr ; as 
apocentre, Ap. The equatorial lines of intensity of sea and 
envelope, at their mean, — that is, at absolute surface, — have 
their pericentres 23 0 28' north and south on meridian Pr, and 
their apocentres on Ap ; they are tangent to the tropical 
circles. The polar lines have their pericentres in V and I 
go° west of Pr, and their apocentres at L and M on the polar 
circles. 
V coincides with the region from where the tides start. 
L is the Maelstrom of old fame ; I fails into Behring’s 
Straits ; M into nameless parts. From L to S the ardtic 
circle crosses 180° of land. The sum of the polar circles 
crosses 360° of land and 360° of sea. The antardtic circle 
(^2*83) 3 =478 of ocean to 1 of land; the ardtic the op- 
posite. 
West of the meridian circle, Pr, Pn, Ap, Ps (Ps the 
south). 
In the North Pole there is i-27th of all land more than 
south of the equator ; but when we lay through Pr Ap a 
circle anywhere between io° 42' to n° 59' from Pn towards 
I, it divides the land 1 : 2*83. A circle laid through Pr Ap, 
south of I on meridian S V, anywhere between 34 0 12' to 
55 0 48', divides the land 1 : 2*83 2 = 1 : 8*oo8. 
The sea which — less dense than the earth — stays behind 
in rotation will try to break through the prototype where 
gravity in the equator is absolutely greatest. The barriers 
