His first published story. Before I read it I never realized we are four-dimensional pink worms.
I'll see if a copy of this is in dagny's collection.
For those that are interested: this short story can be found in the compendium, "Expanded Universe." Per a quick scan on Amazon, it appears there is a relatively new re-release of this book.
@jg, there is old battered copy with the original cover on the headboard or on my bookshelf. :-)