I remember them well, for we read them over and over again.

Addison replied at once, and sent another barrel in its place.
Before another week had passed a second complaint came.

"This last barrel of water from your spring is turning 'ropy,'" it said.

Another customer sent his barrel back when half full, with a letter saying, "It isn't fit to drink.

The barrel is slimy inside." Addison examined the barrel carefully, and found that there was, indeed, an appreciable film of vegetable growth on the staves inside.