It would be however a very acceptable thing if ſome curious Navigators would inform us, what tides or Currents are found at Macao, Quemoy, and other places on the Coast of China and on Formoſa ; it being moſt probable that this flood cometh out of the North Eaſt, alongſt the Coaſt of China, for that the Northerly Moonsoon is found to occaſion the higheſt ſpring-tides.