Unlike some other reproductions of classic texts (1) We have not used
OCR(Optical Character Recognition), as this leads to bad quality books
with introduced typos. (2) In books where there are images such as
portraits, maps, sketches etc We have endeavoured to keep the quality of
these images, so they represent accurately the original artefact.
Although occasionally there may be certain imperfections with these old
texts, we feel they deserve to be made available for future generations
to enjoy.