5 typed drafts with hand-written amendments (variants).; 1 partial typed and hand-written draft.; 2 hand-written manuscripts.; 1 partial hand-written draft.; 1 typed prologue with hand-written amendments.; 2 order forms.; 1 mounted illustration.; 1 hand-written unfinished set of concluding remarks.; 1 reprint, added to file in 1978.; 1 piece of correspondence, plus MNI reprint #1164 and 1 xerox of order.; 1 piece of correspondence, plus a xerox of manuscript.; 2 typed carbon copy letters and a 1 page xerox, added to file in Jan. 1981.