The Potent enemies of America laid open: [electronic resource] : being some account of the baneful effects attending the use of distilled spirituous liquors, and the slavery of the Negroes; : to which is added, the happiness attending life, when dedicated to the honour of God, and good of mankind, in the sentiments of some persons of eminence near the close of their lives, viz. the Earl of Essex, Count Oxcistern, H. Grotius, D. Brainard, John Lock, &c