It must be observed, however, that Monsieur le Monier, in the Memoirs of the French Academy of Sciences for 1776, pleads for the existence of Cape Circumcision, seen by Bouvet in 1738, which our English navigator sought for in vain, and supposes to have been only an island of ice. Mr. Wales, in a paper read before the Royal Society, very forcibly replied to M. le Monier’s objections; and the attack having been repeated, he has drawn up a more extended defence of this part of Captain Cook’s Journal, which he hath very obligingly communicated, and is here inserted. _Arguments, tending to prove that Captain Cook sought for Cape Circumcision under the proper Meridian; and that the objections which have been made to his conduct, in this respect, are not well founded._ In the Memoirs of the Royal Academy of Sciences at Paris for 1776, printed in 1779, _M. Le Monier_ has made some remarks with a design to show that Captain Cook sought the land, usually called Cape Circumcision, in a wrong place; and that, instead of looking for it under the meridian of 9-1/2° or 10° of east longitude, he ought to have looked for it under a meridian which is only 3°, or 3-1/2° to the eastward of the meridian of Greenwich; and consequently that this land may exist, notwithstanding all that has yet been done to find it. _M. Le Monier_ has also two additional Memoirs on the same subject, in the volume for 1779, occasioned, as it appears, by some objections which have been made to his former Memoir before the Academy. For some reason or other, the Academy has not thought proper to print the objections which have been made to _M. Le Monier_’s hypothesis; nor has he been particular enough in his two Memoirs which reply to them, to enable me to say of what importance the objections are. I can only gather, that they contain some exceptions to the quantity by which _M. Le Monier_ asserts the variation alters in 10° of longitude, under the parallel of 54° south; and which, I conceive, has little to do in the dispute.