The version you linked is a 2016 reprint, so I’m actually not sure which one is correct.
The version I linked to still has Gollum offering to give Bilbo the ring so it certainly predates the modern version I have. And that is the change Tolkien explicitly states he made.
The version I linked has this "If it asks us,
and we doesn't answer, we gives it a present, gollum!" Which I'm positive is only in the 1937 version. From what I can tell there were also minor corrections made before the 1951 changes, so I suppose it's possible that adding small slimy creature was one of those.
There are also reported to be dozens of different versions after 1951 caused by printers mixing and matching old and revised plates. I'm unsure exactly how that 1937 facsimile was recreated, or how the version I linked was created. One or both could have been taken from this mismatched versions.
I think the only way to be sure would be to buy a reprint from before 1951 or to find a scan of one online.
I see. This is a weird situation, then, and I apologize if I was abrasive.
Searching online ("Deep down here by the dark water lived old Gollum. I don't know") there are many hits for the line without "small and slimy creature." I assume it to be part of some legitimate edition, and I find it hard to believe this clarification would have been removed between editions, so with some confidence I conclude the original version did not have "small and slimy creature." Still, I understand your POV and appreciate your patience explaining it.
No worries. I wasn’t offended. Just surprised because I knew I had double checked.
Oh yeah I think it’s likely the very first version didn’t have it. But I’m much less sure about when it could have first popped up. I think it’s highly likely it showed up before the Swedish version. But I’m not very confident. Also it’s possible that the version Jansson was working from didn’t have it, even if a version of it with that text existed at the time.
The version you linked is a 2016 reprint, so I’m actually not sure which one is correct.
The version I linked to still has Gollum offering to give Bilbo the ring so it certainly predates the modern version I have. And that is the change Tolkien explicitly states he made.
The version I linked has this "If it asks us, and we doesn't answer, we gives it a present, gollum!" Which I'm positive is only in the 1937 version. From what I can tell there were also minor corrections made before the 1951 changes, so I suppose it's possible that adding small slimy creature was one of those.
There are also reported to be dozens of different versions after 1951 caused by printers mixing and matching old and revised plates. I'm unsure exactly how that 1937 facsimile was recreated, or how the version I linked was created. One or both could have been taken from this mismatched versions.
I think the only way to be sure would be to buy a reprint from before 1951 or to find a scan of one online.