And having mentioned Frezier so often, I must not omit warning all future navigators against relying on the longitude of Streights Le Maire, or of any part of that coast, laid down in his chart, the whole being from 8 to 10 degrees too far to the eastward, if any faith can be given to the concurrent evidences of a great number of journals, verified in some particulars by astronomical observation. For instance, Sir John Narborough places Cape Virgin Mary in 65° 42' of west longitude from the Lizard, that is in about 71-½° from London. And the ships of our squadron, who took their departure from St. Catherine's (where the longitude was rectified by an observation of the eclipse of the moon), found Cape Virgin Mary to be from 70-½° to 72-½° from London, according to their different reckonings; and since there were no circumstances in our run that could render it considerably erroneous, it cannot be esteemed in less than 71 degrees of west longitude; whereas Frezier lays it down in less than 66 degrees from Paris, that is, little more than 63 degrees from London, which is doubtless 8 degrees short of its true quantity. Again, our squadron found Cape Virgin Mary and Streights Le Maire to be not more than 2-½° different in longitude, which in Frezier are distant near 4 degrees, so that not only the longitude of Cape St. Bartholomew is laid down in him near 10 degrees too little, but the coast from the Streights of Magellan to Streights Le Maire is enlarged to near double its real extent. But to have done with Frezier, whose errors, the importance of the subject, and not a fondness for cavilling, has obliged me to remark (though his treatment of Dr. Halley might, on the present occasion, authorise much severer usage), I must, in the next place, relate wherein I differ from that of our learned countryman last mentioned.