While looking for an article in a a copy of Nature from 1926 (as you do)
I came across the following article describing how small quantities of
helium had been seen when hydrogen was absorbed into palladium at room
temperature. There is nothing new under the sun.
https://www.nature.com/articles/118526a0?fbclid=IwAR3cI0_tWhMXny-_5VwiIZBr-OmiXLocmzd7gWgBCC1LKNtPHOShckdpUD4
The article I was really looking for was one of the early Klein papers
on there being a fifth dimension, following up an idea that this might
be part of the explanation of how hydrogen gets converted to helium.
