Inquiry into the Interior Construction of
the Earth--_continued_ 165
The earth gasiform at one period. Density including the moon
may have been 1/10,000th that of air. Must have been a
hollow body. Proofs given 166
Division of the mass of the earth alone into two parts 169
Division of the two masses at 817 miles from surface 171
Reasons why the earth cannot be solid to the centre 172
Gasiform matter condensing in a cone leaves apex empty 172
Proportions of the matter in a cone 173
Calculations of the densities of the outer half of the hollow
shell of the earth. Remarks upon the condensation 174
Calculations of inner half of the hollow shell 175
Remarks upon position of inner surface of the shell 177
Calculations of the same 179