I had to post a little more about the encyclopedia, it is an absolutely lovely and historic book that costs like $10 online for a nice copy, I try to collect food books with exceptional illustrations and design/font/layout, and this edition pictured here and above is one of my top 10 easily:
A neat manual feed flood and drain setup for a window box, you just tilt up the reservoir to flood:
I’m unclear on how true it is, but it seems like he maybe sorta introduced soilless growing to Americans in the 1940s, maybe invented it?