Extracts from the proceedings of the High Court of Vice-Admiralty, in Charlestown, South-Carolina, upon six several informations, adjudged by the Honourable Egerton Leigh, Esq; sole judge of that court, and His Majesty's attorney-general in the said province, in the years 1767 and 1768 : With explanatory remarks, &c. And copies of two extraordinary oaths. : To which are subjoined, recapitulation, reflections arising from a retrospect of a late case, and some general observations on American custom-house officers, and Courts of Vice-Admiralty.