Systema Africanum, or, A treastise, discovering the intrigues and arbitrary preceedings of the Guiney Company : and also how prejudicial they are to the American planters, the woollen, and other English manufactures, to the visible decay of trade, and consequently greatly impairing the royal revenue, which would be infinitely encreased, provided merchants and mariners were encouraged, who can discover several places not yet known, or traded accound of their fortifications, humbly submitted to Their Majesties, and to the consideration of both houses of Parliament / by William Wilkinson.