There's nothing new under the Sun
Reading one of the old Judo books on judoinfo.com, I recently burst out laughing. The book was Modern Judo vol. 2 by Charles Yerkow, 3d Ed. (c) 1947. Available here: http://judoinfo.com/new/alphabetical...364-judo-books
The book itself is quite interesting -- Judo stick fighting!
I've attached a couple of pages. There really is nothing new under the Sun.
[By "kidney-scissor jump" he means what we'd call "jump guard". Daki-age ftw.]