There are two files (and their zipped counterparts) associated with this etext: 40.ps - a Postscript file, intended only for printing to a Postscript printer. 40-pdf.pdf - a PDF version of the above file, produced with Ghostscript. A text version of 40.ps was attempted, but it was deemed a failure. Its lines were unwrapped/unformatted, and there were no blank lines between paragraphs.