The Wayback Machine - https://web.archive.org/web/20120710085846/http://pic.plover.com:80/UnixReader/

Index of /UnixReader

      Name                    Last modified      Size  Description
      Parent Directory                             -   
      README.txt              02-Dec-2011 12:02  1.1K  
      contents.pdf            20-Nov-2011 06:23   51K  
      cover.pdf               02-Dec-2011 12:02  3.1K  
      reader.pdf              20-Nov-2011 06:22   75K  

reader.pdf     McIlroy's annotated guide to research Unix
contents.pdf   McIlroy's catalog of the contents of each version of
               research Unix
cover.pdf      Cover page

From: Doug McIlroy
Date: Mon, 21 Nov 2011 21:05:32 -0500
To: mjd@plover.com
Subject: distributing the Unix Reader

You are welcome to pass the machine-readable fragment of Bell Labs
CSTR 139 on, with the caveat that there's not much to it, since
the heart of the original printed document -- 80 pages of readings
from assorted research Unix manuals -- is missing.  

The fragment now comes in three parts,
http://www.cs.dartmouth.edu/~doug/cover.pdf, .../reader.pdf, .../contents.pdf
I have just updated reader.pdf with a few trivial corrections that had
been penciled into my master copy from time to time.

I have not decided what further resurrection I might do.
Scan the missing pages?  Append an addendum about v10, the
final research Unix System?  As the cover sheet indicates,
I've been proceeding with "all deliberate speed" since
2009, when I converted the machine-readable part to groff.

doug