John Macartney Esq; late of his Majesty's ship Mercury, we are informed, is robbed of his commission by Lord Dunmore, because he would not agree in all his Lordship's measures. We understand that this amiable gentleman is to be sent to Boston, there to take his trial before a courtmartial ー for what? Because probably, he would not consent to be a sheep stealer, or a slave to those creatures of infamy, who pursue nothing but the destruction of this unhappy country.