The governor's commission as vice-admiral, issued (after 1689, at any rate) under the great seal of the High Court of Admiralty, gave him authority to hold an admiralty court in person. Often the governor was not well fitted for such work, though not often so frank as Sir Henry Morgan (doc. no. 46, note 1) in admitting his deficiencies. As admiralty business increased, it became customary to appoint admiralty judges to hold vice-admiralty courts in individual colonies, or in groups of colonies. Sometimes, especially in the earlier period, they were commissioned by the governor of the colony acting under a warrant from the Lords of the Admiralty (doc. no. 69) empowering him so to do; more often they were commissioned directly by those lords, under the great seal of the Admiralty. Doc. no. 180 is a commission of the former sort, doc. no. 181 of the latter. When war broke out, authority to try prize cases was conveyed, as above, to the vice-admiral, the vice-admiralty judge, and their deputies. In the trial of a prize case, the first essential document was the libel (docs. no. 99, no. 128, no. 165, no. 184, and no. 188), by which claim was laid to ship or goods. Witnesses were examined, chiefly by means of the systematic series of questions called standing interrogatories (doc. no. 183). Their testimony, taken down in written depositions, constitutes much the largest class of documents in this volume. Most narratives of privateering or of piracy are found in the form of depositions. Reports of trials, embracing proceedings and documents and testimony, are found in docs. no. 128, no. 143, and no. 165; sentences or decrees of the judge in docs. no. 143, no. 150, and no. 155; inventories of prizes in docs. no. 33 and no. 161; an account of sales in doc. no. 186. If a party to a prize appealed from the sentence of the vice-admiralty court (docs. no. 151 and no. 196), he was required to give bond (doc. no. 152) for due prosecution of the appeal in England. From 1628 to 1708 such appeals were heard by the High Court of Admiralty; after 1708 they went to a body of privy councillors specially commissioned for the purpose, called the Lords Commissioners of Appeal in Prize Causes (see doc. no. 151, note 1). A specimen of a decree of that tribunal reversing the sentence of a colonial vice-admiralty court is in doc. no. 195.[4] [Footnote 4: For a report of these commissioners _approving_ the sentence of the court below, see Stokes, pp. 325-326.]