I J V»c VVCJC JtU lUW iUU bluGI of succesefal experiment/'8I ' - I I' ■** M , » ■ Da. Mary Walker.—A letter dated 1 ‘Castle Thunder, ” Richmond, has .been | received by the mother of Mies jD,. Marylt; ^ g —appears that the I I heroic little surgeon ’bears her imprison-j meat lightly. The following ie an extract f irotn her lefcfer :\ *'t hope you are not grieving about me,because I am a prisoner of war. I am living in a three sfcory brick castle, with plenty to eat, and a clean bed to sleep in.1 have a room mate, a young lady about twenty years of age, from near Corinth, Mississippi, (Miss Martha Manus.) I am I much happier than I might be in some relations of life where I.might be §nvied by other ladies.. The officers are geptl e~ I manly arid kind, and it will not be long 3 r before I am edhangedl,y '' *