From the Robin Catalogue:
A. MS., n.p., n.d., pp. 1-71.
Apparently two drafts which are interwoven, with few, if any, pages missing, but with an order that is difficult to maintain. Both drafts are drafts of MSS. 841 and 842.
The entry in BibTeX format.
By Experience, I mean any conscious effect contributing to a habit, satisfactory and selfcontrolled yet destructible by no exercise of intellectual vigor but only by deadening one’s powers.