Lovecraft’s friend James F. Morton here describes his Paterson Museum, for the April 1933 issue of Hobbies: the Magazine for Collectors.

There’s nothing here about his collection of glow-in-the-dark minerals, known about from other sources. Though we do learn here, for the first time, that “cave minerals” had a special display. And we get a general feel for that the place was like in size and scope, after some five years under his care.