I f you've ever opened a band-aid in a darkened room, you may have noticed something a little unexpected. If you have the right type of band-aid, it may emit visible blue light.

Another application of it has become very extended, namely, in preparing collodion—a discovery made by Dr. May-nard, of Boston, Mass., about seven years ago, and first applied as an adhesive ...

A momentous event that is recounted by many a chemistry professor is in all likelihood partially apocryphal — but it’s just too good a story not to tell.