A large number of persons went out on Sunday from the wharves in Philadelphia to catch a number of “porpoises’* seen near the opposite shore in the Delaware. The “porpoises turned out to be cakes of ice, blackened with mud at the ends!Levi Short, of Buffalo, has invented a new engine of destruction, in the shape of a bombshell or rocket, charged with combustible matter instead of with missies.The Richmond correspondent of the Charleston Couriers complainesof the scenes cf rowdyism at the Theatre in Richmond.— Theatres, concerts, c., seem to be very much out of place, any where in times like the present.XT,. XT..* V Tk/.