This scanned version includes all the cited manuals:

A Research UNIX Reader
Annotated Excepts from the Programmer's Manual, 1971-1986
M. Douglas McIlroy
https://archive.org/details/a_research_unix_reader

From: jnc@mercury.lcs.mit.edu (Noel Chiappa)

From: Paul Ruizendaal

The "Research Unix Reader"

Thanks for mentioning that; I'd never heard of it. Very interesting.


A query: it seems to have been written with access to a set of manuals for the
various early versions of Research Unix. The Unix Tree:

 http://minnie.tuhs.org/cgi-bin/utree.pl

has the manual pages for V3 and V4, and V6 and later, but not the other
ones. Do the manuals used for the preparatio of that note still exist; and, if
so, is there any chance of getting them scanned?