A second hand has endorsed the MS as ‘No.61’ in the upper left-hand corner of p.117. The same hand has also added a bibliographical reference to the bottom of p.117. An omitted word has been added superscript on l.6 of p.117. There is a minor correction to the first word of the penultimate line of p.118 in the form of corrected text being written over the top of incorrect text.