Two letters and several calculations on the sugar colonies and trade; addressed to two committees nominated by the West-India merchants, &c : With an appendix: containing, I. Four letters, concerning the flourishing condition, large extent, and prodigious increase of the French sugar colonies; the poverty, weakness and their vast importance to the trade, navigation, wealth and power of this nation. 2. Some proposals formerly presented to a great minister of state, for the preservation and advancement of the British sugar colonies, and interests in the West-Indies: with an addition of several notes thereon. By Mr. Bennett, late agent in the West-Indies, to the South Sea and Royal Assiento Company of Great Britain; and to the Society for the Propagation of the Gospel in foreign parts.