at a draught

— I then made another ſign that I wanted Drink. They found by my eating, that a ſmall Quantity would not ſuffice me, and being a moſt ingenious People, they flung up with great dexterity one of their largeſt Hogſheads, then rolled it towards my Hand, and beat out the top; I drank it off at a Draught, which I might well do, for it did not hold half a pint, and taſted like a ſmall Wine of Burgundy, but much more delicious.