So elementals are mentioned in places other than that site? I'm quite curious about them. Do you know anywhere where I could find more accurate information about them? Or was the lack of mentioning a wand your only issue with that particular section?
To clarify -
Do you want to learn more about the elementals (entities associated with each element: most classically, these are sylphs, djinn or salamanders, undines, and gnomes) or the elemental tools (the tools associated with each element and, through them, with other correspondences within ritual as well.)