Comment by AlbertCory

I went to a Catholic grammar school (yes, I guess that's a pun there). We didn't learn any science, but we sure learned our grammar. Including diagramming sentences (I don't remember all those refinements, though). The process is pretty helpful.

I find that book reader to be very unappealing, and for this Fremont Older book, which I'm currently writing about:

https://archive.org/details/myownstory00oldegoog

I downloaded the PDF. I think they should have done that here, too and extracted some actual diagrams.