The 1952 edition includes...

• A preface, entitled "The Great Conversation" by R.M. Hutchins (editor-in-chief of the 1st edition)

• An introduction to the series by H.C. Dent

• A "contents" that gives biographical notes on the author/s of the books in the 1st edition.

...and is available to download from...

The Internet Archive from Osmania University, Universal Library Project

• Available formats ABBYY GZ, DAISY, EPUB, FULL TEXT, ITEM TILE, KINDLE, MILLION BOOKS ORIGINAL TIFF ZIP, PDF, SINGLE PAGE PROCESSED TIFF ZIP, TORRENT

The Internet Archive from Public Resource, Public Library of India

• Available formats ABBYY GZ, DAISY, EPUB, FULL TEXT, ITEM TILE, KINDLE, PDF, PDF WITH TEXT, SINGLE PAGE PROCESSED TIFF ZIP, TORRENT

The Internet Archive from ia-mario, Universal Library

• Available formats ABBYY GZ, DAISY, EPUB, FULL TEXT, ITEM TILE, KINDLE, MILLION BOOKS ORIGINAL TIFF ZIP, PDF, SINGLE PAGE PROCESSED TIFF ZIP, TORRENT

The Internet Archive from Public Resource, Public Library of India (poor copy)

• Available formats ABBYY GZ, DAISY, EPUB, FULL TEXT, ITEM TILE, KINDLE, PDF, PDF WITH TEXT, SINGLE PAGE PROCESSED TIFF ZIP, TORRENT

...and is available to borrow from...

The Internet Archive from sf-loaders@archive.org, Internet Archive Books

• Available as ENCRYPTED DAISY, "Borrow this book to access EPUB and PDF files"