Wow! It's pretty impressive! I thought I had done a pretty comprehensive search of the archive of La Nature but I don't remember that one.
I searched the name they gave it in English, wiggle-woggle, and found this postcard:
That's an amazing ride! I imagine nowadays it would be impossible with lawyers suing for induced back pain
The title of the article is human top and it's compared to a Hollandaise table where the top is replaced by people, but it probably belongs to NSTR