The very latest.
Baltimore papers of the 28th ult have been received, but they contain very little news of interest:The Washington correspondent of the New York Post states that gigantic preparations are going on for the approaching campaign in Virginia; that General Grant is actively making his arrangements for a great battle, and that whilst it is not probable that the shock of arms will take place during the week, if General Lee remains in his present position, the latter has it in his power to force a battle at any moment. It he concludes to do so, we are assured the offer will not be declined.
The State Constitutional Convention of Maryland was organized on the 27th--80 members present. Hon H H Goldsborough was elected President.
Mrs Anna Nagent, Mrs Hary R Murphy, and Miss Mary E Seymour, have been arrested in Baltimore on the charge of disloyalty
Mrs L V De Larianage, a widow lady of Spanish birth, with three children, has also been sent to Fortress Monroe on a similar charge.
Gold closed in New York at 10 P M on the 27th at 177¾