...espond to the sentry, whilst passing through the public street. The matter was brought before Flag officer Montgomery, in command of the U. S. naval forces, who at once addressed a communication to Capt. Miller , of H. B. M.'s ship Clio, on the subject, the result of which we have not yet heard, and until we do, we shall refrain from making any comments upon the proceeding. Costa Rica. Costa Rica...