There are a lot of curiosities in the old newspapers we’re digitizing, but rarely do I come across any complete mysteries like this ad, which I found in the Fayetteville Observer from January 8, 1863. Do any of you know anything about Blue Mass?

January 9, 2012 by Nicholas Graham
There are a lot of curiosities in the old newspapers we’re digitizing, but rarely do I come across any complete mysteries like this ad, which I found in the Fayetteville Observer from January 8, 1863. Do any of you know anything about Blue Mass?

This answer seems to comport with the clues in the add.
http://en.wikipedia.org/wiki/Blue_mass
Blue Mass was also called Calomel. Used as a remedy for constipation, but also for diarrhea and dysentery. It was considered an all-round “bowel” cure. VERY frequently given to soldiers in the Civil War camps.