Since it is my goal to get these texts available as soon as possible, I only electronically proofread these pages, so a small number of such mistakes are bound to slip in. The types of mistakes they make, however, are pretty consistent, and I can warn you about them now.
Numbers are a constant woe.
They usually yeild garbage, but as you can guess, sometimes it is visually close garbage. 1' comes out 'L'. Try as I might, I oftentimes miss these. Not only are they numbers, but they're different sized numbers. Odds are they come out as single or double quotation marks.