Thanks for your advice, but I have them all already as you can read in previous messages. I looked carefully at the first one on cavalrymen (except lancers) and found the plates correct, regarding my other documents on polish cavalry (which were not that much numerous I must confess). I am now in the book on the polish lancers of the Guard (I have more documents on that regiment) and I didn't find anything wrong until yet. As written already, I can't speak or read polish, so I don't know about the text.
I wanted another uniformologic source than the french ones and I also like the way Mr Morawski presents the plates.