Precaut'on Taken to Keep Unemyin Irnorar.ee of Troop Movements.• ft'amp Sherman, O., May Officersami im*n were warned by an order is-* front division headquarters today to maintain the utmost secrecy concerning movement of troops from t)hloaH cantonment.Selects and officers are under strict orders not to mention, even in letter* lo the folks hack home, anything regarding their departure or expecteddeparture. The men were advised to write 011 post cards addressed to their families, I have arrived safely. These will be dropped in a mail hug at the port of embarkation and as soon as embarkation authorities receive word that the transport lias arrivedon the other side all cards will hemailed.Successful artillery officer candidates from the third officers* training school .recently closed, are to leave here soon for the replacement camp at Jackson, S. lt;\. These will take the places of officers killed or wounded in the American expeditionary forces in France. There are I to of them.