That is an awesome resource!!! Thanks so much
You're welcome. I think the Soil&Health library should be in every permaculturuist's Bookmarks.
They personify the meaning of the www: The free spread of knowledge.
Much of the wealth of agriculture was captured before the "age of chemistry" (and/or the industrial revolution). Some of those writings can be found at used bookstores, or eBay (usually $100 or more), but they have compiled, and shared many of those treasures.
I am a lifetime (contributing) member of the library, and have actually contributed material to them.
I encourage others to do so as well, if possible.