Penny Blood: Serial Sensation and Working-Class Entertainment — page 134: what you’re looking at

Machine-transcribed from the original scan — historical spelling and the odd misread are preserved.

CH. x.] DISTURBED TRACT. 117 Since = (a) — &(b) + %(8) — 3% (a) = kle, » &(8)—% (a) = kle -=—F le +& ¥(d) —* = 6 Me- 5 (8-2 (A). Hence % (8) —% (a) — {2 (a) —%(b)} = kle- 2% (81—-¥(d)). Now 6/—3%(d), is evidently the volume of the water which has been displaced from the elevated part of the crust by its being elevated. And if we compare the densities of water and rock, it ig evident that : is less than 2, and therefore 2 : (S5l—%(d)) less than the volume of water which has been displaced. But the latter is obviously less than the entire vol- ume which has been added to the part of the crust between A and B by compression, that 1s less than kle. This shows that > (8) —%(a) is always greater than %(a) —%(d), but that this excess is diminished by an ocean, so that it will increase the amount of elevation of the surface above the upper mean level. If we neglect the effect of the ocean, because - is small and § much less than &, then ¥(8)-@)__ a ~(a)—-%(b) ao =P o—p And consequently, if o were infinite we should have (8B) — 2 (a) = | as would be the case, for under such circumstances the crust could not dip down into the fluid, nor the fluid rise into anti- clinals. If we suppose the crust to be of the density of granite, GONG oOo SS (CO)