_MS. by Rubens on Painting._--May I inquire of M. PHILARETE CHASLES whether
he ever saw or heard of a manuscript said to be written in Latin by Rubens,
and existing in the _Bibliotheque Nationale_ at Paris? One or two fragments
have occasionally been quoted: I think one may be found in Sir Joshua
Reynolds' _Discourses_, and the same is used by Burnet in his work on
painting; but no authority is given as to the source of the information.[2]
If such a work can be found, it would confer a great boon upon the
profession of the fine arts, if it were brought to light without delay.