Arrival of Harper's Ferry troops at Carlite.
Carlite, Pa., April 20
--Lieut. Jones and 43 men, lately of the Harper's Ferry garrison, arrived here yesterday evening.
In consequence of the approach of 2,500 men, ordered by Gov. Letcher to take possession of the Armory, they destroyed all the buildings, together with 15,000 stand of arms, and made a forced march to Hagerstown during the night.