https://archive.org/details/johnsonsnewunive01barnuoft

That's volume 1 of the Cyclopaedia (179Mb). They don't have the essay on its own, which is why I selected the relevant four pages. Unfortunately the way I did it bloated them.

You can get an account on 4shared just by asking. It's still a pain in the bum to use (most of the buttons labelled "Download" are fakes).

I still don't know whether Jim got the file or not, or what document Steve is talking about.