Dutch alliances or, a plain proof of their observance of treaties: exemplify'd in the particulars of their inhuman treatment of their friends and confederates, the English, at Amboyna, in order to dispossess them of that and the other Spice Islands in the East Indies. Made publick from a manuscript never before printed, and written by Mr. Beaumont, one of the Persons who escap'd that cruel Massacre; and, with several others, made Affidavit of these Barbarities in the High Court of Admiralty