Board Thread:Questions and Answers/@comment-4441317-20190122065619/@comment-4080775-20190127182506

I came across this after searching and it mentions magnetism, so it's a start.

https://books.google.co.uk/books?id=y_8uDwAAQBAJ&pg=PA206&lpg=PA206&dq=seven+phenomenon+of+the+Aether&source=bl&ots=GZg6pH4aOs&sig=ACfU3U2ksTQDdjPxTWvhURtZHAmVUSPSAA&hl=en&sa=X&ved=2ahUKEwj7j5OFyY7gAhWGON8KHarKCbMQ6AEwEHoECAgQAQ#v=onepage&q=seven%20phenomenon%20of%20the%20Aether&f=false