French version. This is a single PDF file containing both volumes, about 5MB in size. It is the result of scanning, OCR, conversion to LaTeX, and insertion of figures. The OCR results were corrected by hand according to Word spell-checking in French and whatever other egregious errors I noticed, but I did not do a character-by-character comparison with the original. I tried to follow the typographical style and layout of the original as much as possible, but the pagination is different. The PDF file has Bookmarks for the volumes and chapters, and paragraph numbers are active links in the tables of contents and internal cross-references.
English version. This is a single PDF file containing an English translation of both volumes, about 7MB in size. I ran the LaTeX source for the French version through the free Google translator, and then went through the resulting fractured English by hand, changing it enough to be minimally comprehensible. The PDF file has Bookmarks for the volumes and chapters and the main topics within chapters, and paragraph numbers are active links in the tables of contents and internal cross-references. There is also an image index of thumbnails at the end.
Danish version of this page, thanks to a contributer. And Indonesian.