Note 171 — Chapter XII · STEAM NAVIGATION—THE ‘GREAT EASTERN’ STEAM-SHIP. THE LAUNCH. A.D. 1857—1858. ÆTATIS 52.
Reading edition
The number of the presses being almost doubled, but the resistance of the ship not being much greater than before, the elastic compression of the abutments was less than it had been previously, so that when the ship moved there was much less work stored up to give it velocity; therefore the slides were shorter than they had been before.