Hi Clio,

If the professor needs to have his lecture notes edited, he probably needs more help than you can give him.  Does this professor have a God complex?

Have you tried to return his notes back to him with the quotation marks, the italics, and the bold face type - only correcting for sentence structure and spelling?  After all, they are his lecture notes and he can probably understand his own meanings as he has written them. 

Have you placed the notes side by side, his notes and your edited ones?  If he is thoughtful and considerate, maybe he will see the problems that his writing is causing.  If not, then nothing will change.  Sorry.     ~   Bob