TREES HERE DOING A DOUBLE SERVICE 



not only hid advancing French and American troops from enemy flying machine observers, but provided lumb 

 jmparatively heavy timber covered with earth provided fairly good protection from the enemy shells and forest 



These trees 



are seen. Comparatively heavy 



always shelled because they were used to conceal troops. 



lumber for such dugouts as 

 d woodlands were 



CANADIANS GETTING OUT HEAVY TIMBER 



Heavy timber such as shown in this photograph was used for piling, bridge building, canal repair work, etc., by the Allies, while the Germans 

 cut quantities of it to roof dugouts. These heavy timbers covered with several feet of earth made the dugouts safe from even the heav.est shells. 



