Please leave all comments / corrections etc in the comments on THIS blog, not the original (unless you are specifically replying to a comment on the original).
I do not mind any degree of disagreement with me provided it is explained. I will maintain the same strict policy on comments. Please think about your comment – how could someone use this to improve the document, or avoid a mistake that I can explain etc?
Thanks to all for making the effort to help and apologies for new errors I have introduced – please fix them.
I will watch comments and, if there is sufficient interest, I will update this document with additions, corrections of my mistakes etc.
Hopefully your collective…
View original post 109 more words