But we must have already emerged and gone seven hundred or eight hundred leagues; and if I had here an astrolabe to take the altitude of the pole, I could tell thee how many we have travelled, though either I know little, or we have already crossed or shall shortly cross the equinoctial line which parts the two opposite poles midway.”

“And when we come to that line your worship speaks of,” said Sancho, “how far shall we have gone?”

“Very far,” said Don Quixote, “for of the three hundred and sixty degrees that this terraqueous globe contains, as computed by Ptolemy, the greatest cosmographer known, we shall have travelled one-half when we come to the line I spoke of.”

“By God,” said Sancho, “your worship gives me a nice authority for what you say, putrid Dolly something transmogrified, or whatever it is.”